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CVE-2026-53613

util-linux mount target TOCTOU allows local privilege escalation

7.0 HighPublic exploitFix available

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
High
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.16%Unchanged since Oct 15, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.0

util-linux mount target TOCTOU allows local privilege escalation

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-367
Updated
2026-11-02
EUVDEUVD-2026-101124 7.0

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
EUVD-2026-101124
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
NVD 7.0

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-367
Updated
2026-11-02
OSVALPINE-CVE-2026-53613 7.0

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
ALPINE-CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVBELL-CVE-2026-53613 7.0
Record
BELL-CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 7.0

util-linux mount target TOCTOU allows local privilege escalation

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-367
Updated
2026-11-02
Show 25 moreShow less
OSVDEBIAN-CVE-2026-53613 7.0

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
DEBIAN-CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-3978 7.8

util-linux security update

The util-linux package contains a random collection of files that implements some low-level basic linux utilities.

Security Fix(es):

When an /etc/fstab entry is configured with the user or users option, mount(8) validates the target path before performing the mount syscall, creating a Time-of-Check-Time-of-Use (TOCTOU) window. A local unprivileged user with write access to an ancestor directory of the mount target can swap that directory to redirect the mount to an arbitrary root-owned location, potentially escalating privileges to root.(CVE-2026-53613)

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.(CVE-2026-78410)

Record
OESA-2026-3978
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-3979 7.8

util-linux security update

The util-linux package contains a random collection of files that implements some low-level basic linux utilities.

Security Fix(es):

When an /etc/fstab entry is configured with the user or users option, mount(8) validates the target path before performing the mount syscall, creating a Time-of-Check-Time-of-Use (TOCTOU) window. A local unprivileged user with write access to an ancestor directory of the mount target can swap that directory to redirect the mount to an arbitrary root-owned location, potentially escalating privileges to root.(CVE-2026-53613)

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.(CVE-2026-78410)

Record
OESA-2026-3979
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-3980 7.8

util-linux security update

The util-linux package contains a random collection of files that implements some low-level basic linux utilities.

Security Fix(es):

CVE-2026-53612 has no publicly disclosed vulnerability details yet. It is only indexed by the Snyk data source. Details are pending disclosure.(CVE-2026-53612)

When an /etc/fstab entry is configured with the user or users option, mount(8) validates the target path before performing the mount syscall, creating a Time-of-Check-Time-of-Use (TOCTOU) window. A local unprivileged user with write access to an ancestor directory of the mount target can swap that directory to redirect the mount to an arbitrary root-owned location, potentially escalating privileges to root.(CVE-2026-53613)

A flaw was found in util-linux. The mount(8) SUID binary does not sanitize the LIBMOUNT_FORCE_MOUNT2 environment variable before use. A local unprivileged user can set this variable to force mount(8) to use the legacy two-step mount(2) code path, which applies security restrictions such as nosuid and noexec after the mount is already active. During this window, an attacker can execute a SUID binary from the mounted filesystem, allowing local privilege escalation to root. Affected versions: util-linux v2.39.1 through v2.43-devel (current master).(CVE-2026-53614)

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.(CVE-2026-78410)

Record
OESA-2026-3980
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-3981 7.8

util-linux security update

The util-linux package contains a random collection of files that implements some low-level basic linux utilities.

Security Fix(es):

CVE-2026-53612 has no publicly disclosed vulnerability details yet. It is only indexed by the Snyk data source. Details are pending disclosure.(CVE-2026-53612)

When an /etc/fstab entry is configured with the user or users option, mount(8) validates the target path before performing the mount syscall, creating a Time-of-Check-Time-of-Use (TOCTOU) window. A local unprivileged user with write access to an ancestor directory of the mount target can swap that directory to redirect the mount to an arbitrary root-owned location, potentially escalating privileges to root.(CVE-2026-53613)

A flaw was found in util-linux. The mount(8) SUID binary does not sanitize the LIBMOUNT_FORCE_MOUNT2 environment variable before use. A local unprivileged user can set this variable to force mount(8) to use the legacy two-step mount(2) code path, which applies security restrictions such as nosuid and noexec after the mount is already active. During this window, an attacker can execute a SUID binary from the mounted filesystem, allowing local privilege escalation to root. Affected versions: util-linux v2.39.1 through v2.43-devel (current master).(CVE-2026-53614)

util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks, allowing unprivileged users to execute privileged operations on pre-existing filesystems. Attackers can exploit X-mount.idmap or X-mount.owner hooks to clone filesystems with inherited suid bits or modify target inode permissions after a helper fails, achieving privilege escalation.(CVE-2026-76642)

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.(CVE-2026-78410)

Record
OESA-2026-3981
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVOESA-2026-4073 7.8

util-linux security update

The util-linux package contains a random collection of files that implements some low-level basic linux utilities.

Security Fix(es):

CVE-2026-53612 has no publicly disclosed vulnerability details yet. It is only indexed by the Snyk data source. Details are pending disclosure.(CVE-2026-53612)

When an /etc/fstab entry is configured with the user or users option, mount(8) validates the target path before performing the mount syscall, creating a Time-of-Check-Time-of-Use (TOCTOU) window. A local unprivileged user with write access to an ancestor directory of the mount target can swap that directory to redirect the mount to an arbitrary root-owned location, potentially escalating privileges to root.(CVE-2026-53613)

A flaw was found in util-linux. The mount(8) SUID binary does not sanitize the LIBMOUNT_FORCE_MOUNT2 environment variable before use. A local unprivileged user can set this variable to force mount(8) to use the legacy two-step mount(2) code path, which applies security restrictions such as nosuid and noexec after the mount is already active. During this window, an attacker can execute a SUID binary from the mounted filesystem, allowing local privilege escalation to root. Affected versions: util-linux v2.39.1 through v2.43-devel (current master).(CVE-2026-53614)

A flaw was found in util-linux. Restricted bind mounts take the source path from fstab but do not pin that source before the privileged mount. A local unprivileged user who can replace the authorized source or a writable ancestor can redirect SUID mount(8) to bind another host directory. If the fstab entry also sets X-mount.owner, X-mount.group, or X-mount.mode, root then changes ownership or mode on that redirected inode.(CVE-2026-78410)

Record
OESA-2026-4073
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2026:93461 8.0

Important: util-linux security update

The util-linux packages contain a large variety of low-level system utilities that are necessary for a Linux system to function. Among others, these include the fdisk configuration tool and the login program.

Security Fix(es):

  • util-linux: TOCTOU in the mount program when setting up loop devices (CVE-2026-27456)

  • util-linux: util-linux: heap use-after-free in libblkid nested partition probing (CVE-2026-13595)

  • util-linux: TOCTOU in the mount program via ancestor directory swap on target path (CVE-2026-53613)

  • util-linux: util-linux: TOCTOU in the mount program when applying post-mount ownership/mode changes (CVE-2026-53612)

  • util-linux: util-linux: SUID mount(8) allows nosuid/noexec bypass via LIBMOUNT_FORCE_MOUNT2 (CVE-2026-53614)

  • util-linux: util-linux: failed external mount helper still runs privileged X-mount post-hooks (CVE-2026-76642)

  • util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority (CVE-2026-78408)

  • util-linux: util-linux: restricted bind mounts do not pin the source, allowing X-mount.owner/group/mode redirection (CVE-2026-78410)

  • util-linux: util-linux: Partition metadata compromise via integer overflow in DOS partition parser (CVE-2026-53615)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
RLSA-2026:93461
CVSS 3.1
8.0 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Updated
2026-11-03
OSVUBUNTU-CVE-2026-53613 7.0

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
UBUNTU-CVE-2026-53613
CVSS 3.1
7.0 HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVALSA-2026:93461 No score

Important: util-linux security update

The util-linux packages contain a large variety of low-level system utilities that are necessary for a Linux system to function. Among others, these include the fdisk configuration tool and the login program.

Security Fix(es):

  • util-linux: TOCTOU in the mount program when setting up loop devices (CVE-2026-27456)
  • util-linux: util-linux: heap use-after-free in libblkid nested partition probing (CVE-2026-13595)
  • util-linux: TOCTOU in the mount program via ancestor directory swap on target path (CVE-2026-53613)
  • util-linux: util-linux: TOCTOU in the mount program when applying post-mount ownership/mode changes (CVE-2026-53612)
  • util-linux: util-linux: SUID mount(8) allows nosuid/noexec bypass via LIBMOUNT_FORCE_MOUNT2 (CVE-2026-53614)
  • util-linux: util-linux: failed external mount helper still runs privileged X-mount post-hooks (CVE-2026-76642)
  • util-linux: util-linux: nsenter --join-cgroup leaks root cgroup migration authority (CVE-2026-78408)
  • util-linux: util-linux: restricted bind mounts do not pin the source, allowing X-mount.owner/group/mode redirection (CVE-2026-78410)
  • util-linux: util-linux: Partition metadata compromise via integer overflow in DOS partition parser (CVE-2026-53615)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record
ALSA-2026:93461
Updated
2026-11-02
OSVAZL-108555 No score

CVE-2026-53613 affecting package util-linux for versions less than 2.40.2-7

util-linux is a random collection of Linux utilities. In util-linux 2.17 through 2.41.6 and 2.42 through 2.42.3, and in 2.42.4 when the legacy mount(2) path is used without /proc, restricted non-root mount requests validate an /etc/fstab target before the mount operation re-resolves that pathname. A local low-privileged user authorized by an fstab user or users entry whose target has an attacker-writable ancestor can use renameat2(RENAME_EXCHANGE) to swap a path component and redirect an authorized mount to a root-owned location, such as mounting attacker-controlled content over /etc/sudoers.d, and thereby gain root privileges. Versions 2.41.5 and 2.42.2 pin targets for the new mount API, and 2.42.4 pins legacy targets through /proc/self/fd; the documented legacy fallback without /proc remains affected.

Record
AZL-108555
Updated
2026-11-06
OSVMGASA-2026-0560 No score

Updated util-linux package fixes security vulnerabilities

Additional fix for CVE-2024-28085. Local Privilege Escalation via TOCTOU in mount(8) hook_owner.c chmod/chown. (CVE-2026-53612) Local Privilege Escalation via TOCTOU in mount(8) — Target Path Redirection. (CVE-2026-53613) Local Privilege Escalation via LIBMOUNT_FORCE_MOUNT2 Environment Variable — nosuid/noexec Bypass in SUID mount(8). (CVE-2026-53614) mount(8) post-mount hooks execute after helper failure. (CVE-2026-76642) nsenter(1), unshare(1) file descriptor leak. (CVE-2026-78408) mount(8) X-mount.subdir symlink escape. (CVE-2026-78409) mount(8) TOCTOU race on source path. (CVE-2026-78410)

Record
MGASA-2026-0560
Updated
2026-11-02
OSVopenSUSE-SU-2026:11408-1 No score

libblkid-devel-2.42.2-1.1 on GA media

These are all security issues fixed in the libblkid-devel-2.42.2-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11408-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:21905-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606).
  • CVE-2026-53612: local privilege escalation via TOCTOU in mount(8) hook_owner.c chmod/chown (bsc#1268886).
  • CVE-2026-53613: local privilege escalation via TOCTOU in mount(8) - Target Path Redirection (bsc#1268886).
  • CVE-2026-53614: local privilege escalation via LIBMOUNT_FORCE_MOUNT2 Environment Variable - nosuid/noexec Bypass in SUID mount(8) (bsc#1268886).
  • CVE-2026-76642: failed external mount helper triggers privileged X-mount post-hooks, which enables local privilege escalation (bsc#1278349).
  • CVE-2026-78408: nsenter --join-cgroup leaks root cgroup migration authority, which allows for migration or termination of root processes (bsc#1278348).
  • CVE-2026-78410: restricted bind mounts do not pin the source, which allows for X-mount.owner/group/mode redirection (bsc#1278347).

Changes for util-linux:

  • lib/fileutils: add ul_openat_resolve() openat2 wrapper (bsc#1275441)
  • lib/fileutils: fix RESOLVE_NO_SYMLINKS fallback value
  • lib/fileutils: fix unused parameter warnings without SYS_openat2
  • libmount: add missing fileutils.h include to hook_idmap.c
  • libmount: add mnt_open_tree() helper for safe tree opening
  • libmount: pin source path with openat2() for restricted users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: restrict source path canonicalization for non-root users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: skip post-mount hooks after failed mount helper (bsc#1275441, bsc#1278349, CVE-2026-76642)
  • libmount: use USE_LIBMOUNT_MOUNTFD_SUPPORT for idmap hook
  • nsenter: close cgroup.procs fd after join to prevent authority leak (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • nsenter, unshare: add O_CLOEXEC to all open() calls (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • wall, write: sanitize hostname in banner header (bsc#1275441)
  • Add missing function. (bsc#1275441)
  • ipcutils: Prevent using uninitialized variable (bsc#1268886)
  • BREAKING CHANGE: Paths must always be canonicalized for unprivileged users to ensure safe target resolution. X-mount.nocanonicalize is ignored for them.
  • INCOMAPTIBLE CHANGE (linux < 6.15): X-mount.subdir: The safe detached subdirectory is no more supported for unprivileged users for safety reasons.
  • liblastlog2: Wait on busy SQLite connections (bsc#1268886).
  • libmount: Fix subvolid buffer overflow in get_btrfs_fs_root (bsc#1268886).
  • libblkid: Fix use-after-free in nested partition probing (bsc#1269583, bsc#1268886, CVE-2026-13595)
  • libmount: fix SUID bypass via LIBMOUNT_FORCE_MOUNT2 and legacy mount path (bsc#1268886, CVE-2026-53614, GHSA-67r7-8m5w-22wx).
  • fileutils: add ul_open_no_symlinks() needed by other patches (bsc#1268886).
  • libmount: add fd_target to context for TOCTOU race condition prevention (bsc#1268886, CVE-2026-53613, GHSA-8gj5-72r3-428g).
  • libmount: ignore X-mount.nocanonicalize for restricted users
  • libmount: use fd-based fchownat/chmod in hook_owner (bsc#1268886, CVE-2026-53612, GHSA-g8wm-75wr-g2vh).
  • libmount: restrict X-mount.subdir for non-root (bsc#1268886).
  • libmount: use fd_target in hook_idmap for move_mount()
  • libmount: add mount ID verification and man page TOCTOU note
  • loopdev: use openat2(RESOLVE_NO_SYMLINKS) for backing file (bsc#1268886#c2, bsc#1261606).
  • Ignore pam-config error that prevents update failure if common* pam configuration is not symlink to common-*-pc (bsc#1270219).
Record
openSUSE-SU-2026:21905-1
Updated
2026-11-02
OSVROOT-OS-DEBIAN-11-CVE-2026-53613 No score

CVE-2026-53613 in util-linux - Patched by Root

Root has patched CVE-2026-53613 in the util-linux package for Root:Debian:11. Multiple fixed versions available.

Record
ROOT-OS-DEBIAN-11-CVE-2026-53613
Updated
2026-11-02
OSVSUSE-SU-2026:23250-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free read in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices (bsc#1261606).
  • Several security issues in releases prior to v2.42.2 and v2.41.5 (bsc#1268886).
Record
SUSE-SU-2026:23250-1
Updated
2026-11-02
OSVSUSE-SU-2026:23255-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

Security issues fixed:

  • CVE-2026-13595: heap use-after-free read in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices (bsc#1261606).
  • Several security issues in releases prior to v2.42.2 and v2.41.5 (bsc#1268886).

Other updates and bugfixes:

  • Ignore pam-config error that prevents update failure if common* pam configuration is not symlink to common-*-pc (bsc#1270219).
Record
SUSE-SU-2026:23255-1
Updated
2026-11-02
OSVSUSE-SU-2026:23861-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606).
  • CVE-2026-53612: local privilege escalation via TOCTOU in mount(8) hook_owner.c chmod/chown (bsc#1268886).
  • CVE-2026-53613: local privilege escalation via TOCTOU in mount(8) - Target Path Redirection (bsc#1268886).
  • CVE-2026-53614: local privilege escalation via LIBMOUNT_FORCE_MOUNT2 Environment Variable - nosuid/noexec Bypass in SUID mount(8) (bsc#1268886).
  • CVE-2026-76642: failed external mount helper triggers privileged X-mount post-hooks, which enables local privilege escalation (bsc#1278349).
  • CVE-2026-78408: nsenter --join-cgroup leaks root cgroup migration authority, which allows for migration or termination of root processes (bsc#1278348).
  • CVE-2026-78410: restricted bind mounts do not pin the source, which allows for X-mount.owner/group/mode redirection (bsc#1278347).

Changes for util-linux:

  • lib/fileutils: add ul_openat_resolve() openat2 wrapper (bsc#1275441)
  • lib/fileutils: fix RESOLVE_NO_SYMLINKS fallback value
  • lib/fileutils: fix unused parameter warnings without SYS_openat2
  • libmount: add missing fileutils.h include to hook_idmap.c
  • libmount: add mnt_open_tree() helper for safe tree opening
  • libmount: pin source path with openat2() for restricted users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: restrict source path canonicalization for non-root users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: skip post-mount hooks after failed mount helper (bsc#1275441, bsc#1278349, CVE-2026-76642)
  • libmount: use USE_LIBMOUNT_MOUNTFD_SUPPORT for idmap hook
  • nsenter: close cgroup.procs fd after join to prevent authority leak (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • nsenter, unshare: add O_CLOEXEC to all open() calls (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • wall, write: sanitize hostname in banner header (bsc#1275441)
  • Add missing function. (bsc#1275441)
  • ipcutils: Prevent using uninitialized variable (bsc#1268886)
  • BREAKING CHANGE: Paths must always be canonicalized for unprivileged users to ensure safe target resolution. X-mount.nocanonicalize is ignored for them.
  • INCOMAPTIBLE CHANGE (linux < 6.15): X-mount.subdir: The safe detached subdirectory is no more supported for unprivileged users for safety reasons.
  • liblastlog2: Wait on busy SQLite connections (bsc#1268886).
  • libmount: Fix subvolid buffer overflow in get_btrfs_fs_root (bsc#1268886).
  • libblkid: Fix use-after-free in nested partition probing (bsc#1269583, bsc#1268886, CVE-2026-13595)
  • libmount: fix SUID bypass via LIBMOUNT_FORCE_MOUNT2 and legacy mount path (bsc#1268886, CVE-2026-53614, GHSA-67r7-8m5w-22wx).
  • fileutils: add ul_open_no_symlinks() needed by other patches (bsc#1268886).
  • libmount: add fd_target to context for TOCTOU race condition prevention (bsc#1268886, CVE-2026-53613, GHSA-8gj5-72r3-428g).
  • libmount: ignore X-mount.nocanonicalize for restricted users
  • libmount: use fd-based fchownat/chmod in hook_owner (bsc#1268886, CVE-2026-53612, GHSA-g8wm-75wr-g2vh).
  • libmount: restrict X-mount.subdir for non-root (bsc#1268886).
  • libmount: use fd_target in hook_idmap for move_mount()
  • libmount: add mount ID verification and man page TOCTOU note
  • loopdev: use openat2(RESOLVE_NO_SYMLINKS) for backing file (bsc#1268886#c2, bsc#1261606).
  • Ignore pam-config error that prevents update failure if common* pam configuration is not symlink to common-*-pc (bsc#1270219).
Record
SUSE-SU-2026:23861-1
Updated
2026-11-02
OSVSUSE-SU-2026:23870-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606).
  • CVE-2026-53612: local privilege escalation via TOCTOU in mount(8) hook_owner.c chmod/chown (bsc#1268886).
  • CVE-2026-53613: local privilege escalation via TOCTOU in mount(8) - Target Path Redirection (bsc#1268886).
  • CVE-2026-53614: local privilege escalation via LIBMOUNT_FORCE_MOUNT2 Environment Variable - nosuid/noexec Bypass in SUID mount(8) (bsc#1268886).
  • CVE-2026-76642: failed external mount helper triggers privileged X-mount post-hooks, which enables local privilege escalation (bsc#1278349).
  • CVE-2026-78408: nsenter --join-cgroup leaks root cgroup migration authority, which allows for migration or termination of root processes (bsc#1278348).
  • CVE-2026-78410: restricted bind mounts do not pin the source, which allows for X-mount.owner/group/mode redirection (bsc#1278347).

Changes for util-linux:

  • lib/fileutils: add ul_openat_resolve() openat2 wrapper (bsc#1275441)
  • lib/fileutils: fix RESOLVE_NO_SYMLINKS fallback value
  • lib/fileutils: fix unused parameter warnings without SYS_openat2
  • libmount: add missing fileutils.h include to hook_idmap.c
  • libmount: add mnt_open_tree() helper for safe tree opening
  • libmount: pin source path with openat2() for restricted users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: restrict source path canonicalization for non-root users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: skip post-mount hooks after failed mount helper (bsc#1275441, bsc#1278349, CVE-2026-76642)
  • libmount: use USE_LIBMOUNT_MOUNTFD_SUPPORT for idmap hook
  • nsenter: close cgroup.procs fd after join to prevent authority leak (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • nsenter, unshare: add O_CLOEXEC to all open() calls (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • wall, write: sanitize hostname in banner header (bsc#1275441)
  • Add missing function. (bsc#1275441)
  • ipcutils: Prevent using uninitialized variable (bsc#1268886)
  • BREAKING CHANGE: Paths must always be canonicalized for unprivileged users to ensure safe target resolution. X-mount.nocanonicalize is ignored for them.
  • INCOMAPTIBLE CHANGE (linux < 6.15): X-mount.subdir: The safe detached subdirectory is no more supported for unprivileged users for safety reasons.
  • liblastlog2: Wait on busy SQLite connections (bsc#1268886).
  • libmount: Fix subvolid buffer overflow in get_btrfs_fs_root (bsc#1268886).
  • libblkid: Fix use-after-free in nested partition probing (bsc#1269583, bsc#1268886, CVE-2026-13595)
  • libmount: fix SUID bypass via LIBMOUNT_FORCE_MOUNT2 and legacy mount path (bsc#1268886, CVE-2026-53614, GHSA-67r7-8m5w-22wx).
  • fileutils: add ul_open_no_symlinks() needed by other patches (bsc#1268886).
  • libmount: add fd_target to context for TOCTOU race condition prevention (bsc#1268886, CVE-2026-53613, GHSA-8gj5-72r3-428g).
  • libmount: ignore X-mount.nocanonicalize for restricted users
  • libmount: use fd-based fchownat/chmod in hook_owner (bsc#1268886, CVE-2026-53612, GHSA-g8wm-75wr-g2vh).
  • libmount: restrict X-mount.subdir for non-root (bsc#1268886).
  • libmount: use fd_target in hook_idmap for move_mount()
  • libmount: add mount ID verification and man page TOCTOU note
  • loopdev: use openat2(RESOLVE_NO_SYMLINKS) for backing file (bsc#1268886#c2, bsc#1261606).
  • Ignore pam-config error that prevents update failure if common* pam configuration is not symlink to common-*-pc (bsc#1270219).
Record
SUSE-SU-2026:23870-1
Updated
2026-11-02
OSVSUSE-SU-2026:23884-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606).
  • CVE-2026-53612: local privilege escalation via TOCTOU in mount(8) hook_owner.c chmod/chown (bsc#1268886).
  • CVE-2026-53613: local privilege escalation via TOCTOU in mount(8) - Target Path Redirection (bsc#1268886).
  • CVE-2026-53614: local privilege escalation via LIBMOUNT_FORCE_MOUNT2 Environment Variable - nosuid/noexec Bypass in SUID mount(8) (bsc#1268886).
  • CVE-2026-76642: failed external mount helper triggers privileged X-mount post-hooks, which enables local privilege escalation (bsc#1278349).
  • CVE-2026-78408: nsenter --join-cgroup leaks root cgroup migration authority, which allows for migration or termination of root processes (bsc#1278348).
  • CVE-2026-78410: restricted bind mounts do not pin the source, which allows for X-mount.owner/group/mode redirection (bsc#1278347).

Changes for util-linux:

  • lib/fileutils: add ul_openat_resolve() openat2 wrapper (bsc#1275441)
  • lib/fileutils: fix RESOLVE_NO_SYMLINKS fallback value
  • lib/fileutils: fix unused parameter warnings without SYS_openat2
  • libmount: add missing fileutils.h include to hook_idmap.c
  • libmount: add mnt_open_tree() helper for safe tree opening
  • libmount: pin source path with openat2() for restricted users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: restrict source path canonicalization for non-root users (bsc#1275441, bsc#1278347, CVE-2026-78410)
  • libmount: skip post-mount hooks after failed mount helper (bsc#1275441, bsc#1278349, CVE-2026-76642)
  • libmount: use USE_LIBMOUNT_MOUNTFD_SUPPORT for idmap hook
  • nsenter: close cgroup.procs fd after join to prevent authority leak (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • nsenter, unshare: add O_CLOEXEC to all open() calls (bsc#1275441, bsc#1278348, CVE-2026-78408)
  • wall, write: sanitize hostname in banner header (bsc#1275441)
  • Add missing function. (bsc#1275441)
  • ipcutils: Prevent using uninitialized variable (bsc#1268886)
  • BREAKING CHANGE: Paths must always be canonicalized for unprivileged users to ensure safe target resolution. X-mount.nocanonicalize is ignored for them.
  • INCOMAPTIBLE CHANGE (linux < 6.15): X-mount.subdir: The safe detached subdirectory is no more supported for unprivileged users for safety reasons.
  • liblastlog2: Wait on busy SQLite connections (bsc#1268886).
  • libmount: Fix subvolid buffer overflow in get_btrfs_fs_root (bsc#1268886).
  • libblkid: Fix use-after-free in nested partition probing (bsc#1269583, bsc#1268886, CVE-2026-13595)
  • libmount: fix SUID bypass via LIBMOUNT_FORCE_MOUNT2 and legacy mount path (bsc#1268886, CVE-2026-53614, GHSA-67r7-8m5w-22wx).
  • fileutils: add ul_open_no_symlinks() needed by other patches (bsc#1268886).
  • libmount: add fd_target to context for TOCTOU race condition prevention (bsc#1268886, CVE-2026-53613, GHSA-8gj5-72r3-428g).
  • libmount: ignore X-mount.nocanonicalize for restricted users
  • libmount: use fd-based fchownat/chmod in hook_owner (bsc#1268886, CVE-2026-53612, GHSA-g8wm-75wr-g2vh).
  • libmount: restrict X-mount.subdir for non-root (bsc#1268886).
  • libmount: use fd_target in hook_idmap for move_mount()
  • libmount: add mount ID verification and man page TOCTOU note
  • loopdev: use openat2(RESOLVE_NO_SYMLINKS) for backing file (bsc#1268886#c2, bsc#1261606).
  • Ignore pam-config error that prevents update failure if common* pam configuration is not symlink to common-*-pc (bsc#1270219).
Record
SUSE-SU-2026:23884-1
Updated
2026-11-02
OSVSUSE-SU-2026:3684-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free read in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices (bsc#1261606).
  • Several security issues in releases prior to v2.42.2 and v2.41.5 (bsc#1268886).
Record
SUSE-SU-2026:3684-1
Updated
2026-11-02
OSVSUSE-SU-2026:3685-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free read in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices (bsc#1261606).
  • Several security issues in releases prior to v2.42.2 and v2.41.5 (bsc#1268886).
Record
SUSE-SU-2026:3685-1
Updated
2026-11-02
OSVSUSE-SU-2026:3812-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free read in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices (bsc#1261606).
  • Several security issues in releases prior to v2.42.2 and v2.41.5 (bsc#1268886).
Record
SUSE-SU-2026:3812-1
Updated
2026-11-02
OSVSUSE-SU-2026:3813-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free read in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices (bsc#1261606).
  • Several security issues in releases prior to v2.42.2 and v2.41.5 (bsc#1268886).
Record
SUSE-SU-2026:3813-1
Updated
2026-11-02
OSVSUSE-SU-2026:4296-1 No score

Security update for util-linux

This update for util-linux fixes the following issues:

  • CVE-2026-13595: heap use-after-free in libblkid nested partition probing (bsc#1269583).
  • CVE-2026-27456: TOCTOU in the mount program when setting up loop devices (bsc#1261606).
  • CVE-2026-53613: Local Privilege Escalation via TOCTOU in mount(8) — Target Path Redirection (bsc#1268886)
Record
SUSE-SU-2026:4296-1
Updated
2026-11-02
OSVUSN-8702-1 No score

util-linux vulnerabilities

It was discovered that libblkid in util-linux had a heap use-after-free vulnerability during nested partition probing. An attacker who could present a crafted block device image could possibly use this issue to obtain sensitive information or cause a denial of service. (CVE-2026-13595)

It was discovered that the mount utility in util-linux had a time-of-check- time-of-use vulnerability when setting up loop devices. A local attacker could possibly use this issue to obtain unauthorized read access to root- protected files and block devices. (CVE-2026-27456)

It was discovered that the login utility in util-linux improperly canonicalized hostnames when invoked with the -h option. A remote attacker could possibly use this issue to bypass host-based access control rules. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-3184)

It was discovered that libmount in util-linux had a time-of-check-time-of- use vulnerability in its ownership hook. A local attacker could possibly use this issue to gain elevated privileges. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-53612)

It was discovered that libmount in util-linux had a time-of-check-time-of- use vulnerability that allowed target path redirection during mount operations. A local attacker could possibly use this issue to gain elevated privileges. (CVE-2026-53613)

It was discovered that libmount in util-linux improperly handled the LIBMOUNT_FORCE_MOUNT2 environment variable in the SUID mount utility. A local attacker could possibly use this issue to bypass nosuid and noexec mount options and gain elevated privileges. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-53614)

It was discovered that libblkid in util-linux had an integer overflow vulnerability when parsing DOS partition tables. An attacker who could present a crafted block device image could possibly use this issue to cause a denial of service. (CVE-2026-53615)

Record
USN-8702-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
util-linux
Alpine:v3.22
 before 2.41.6-r0
2.41.6-r0
util-linux
Alpine:v3.23
 before 2.41.6-r0
2.41.6-r0
util-linux
Alpine:v3.24
 before 2.42.3-r0
2.42.3-r0
libblkid
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libblkid-devel
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libfdisk
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libfdisk-devel
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libmount
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libmount-devel
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libsmartcols
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
Show 87 moreShow less
Affected packages
PackageAffectedFixed
libsmartcols-devel
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libuuid
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
libuuid-devel
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
python3-libmount
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
util-linux
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
util-linux-core
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
uuidd
AlmaLinux:10
From an advisory covering 9 CVEs
 before 2.40.2-18.el10_2.20
2.40.2-18.el10_2.20
util-linux
Azure Linux:3
 before 2.40.2-7
2.40.2-7
util-linux
Alpaquita:25
 2.41-r6 up to 2.41.5-r0
2.41.5-r0
util-linux
Alpaquita:stream
 2.39-r14 up to 2.42.2-r0
2.42.2-r0
util-linux
BellSoft Hardened Containers:25
 2.41-r6 up to 2.41.5-r0
2.41.5-r0
util-linux
BellSoft Hardened Containers:stream
 2.39-r14 up to 2.42.2-r0
2.42.2-r0
util-linux
Debian:12
 All versions, plus listed versions
2.38.1-52.38.1-5+deb12u12.38.1-5+deb12u22.38.1-5+deb12u32.38.1-5+loong64
Show 45 moreShow less
2.38.1-62.39.1-12.39.1-22.39.1-32.39.1-42.39.2-12.39.2-22.39.2-2.12.39.2-2.22.39.2-32.39.2-42.39.2-52.39.2-62.39.3-12.39.3-102.39.3-112.39.3-22.39.3-32.39.3-42.39.3-52.39.3-62.39.3-6.12.39.3-6.1~exp12.39.3-72.39.3-82.39.3-92.40-12.40-22.40-32.40-42.40-52.40-62.40-72.40-82.40.1-12.40.1-22.40.1-32.40.1-42.40.1-4+hurd.12.40.1-62.40.1-72.40.1-82.40.1-8.12.40.1-92.40.2-1
 None known
util-linux
Debian:13
 before 2.41.5-0+deb13u1, plus listed versions
2.41-52.41.1-12.41.1-22.41.1-32.41.1-4
Show 8 moreShow less
2.41.2-12.41.2-22.41.2-32.41.2-42.41.3-12.41.3-22.41.3-32.41.3-4
2.41.5-0+deb13u1
util-linux
Debian:14
 before 2.42.2-1, plus listed versions
2.41-52.41.1-12.41.1-22.41.1-32.41.1-4
Show 24 moreShow less
2.41.2-12.41.2-22.41.2-32.41.2-42.41.3-12.41.3-22.41.3-32.41.3-42.42-12.42-22.42-32.42-42.42-52.42-62.42.1-12.42.1-22.42.1-32.42.1-42.42.1-52.42.1-62.42~rc1-12.42~rc1-22.42~rc1-32.42~rc2-1
2.42.2-1
util-linux
Mageia:10
From an advisory covering 8 CVEs
 before 2.42.4-1.mga10
2.42.4-1.mga10
util-linux
openEuler:20.03-LTS-SP4
From an advisory covering 2 CVEs
 before 2.35.2-35.oe2003sp4
2.35.2-35.oe2003sp4
util-linux
openEuler:22.03-LTS-SP4
From an advisory covering 2 CVEs
 before 2.37.2-56.oe2203sp4
2.37.2-56.oe2203sp4
util-linux
openEuler:24.03-LTS-SP1
From an advisory covering 4 CVEs
 before 2.39.1-44.oe2403sp1
2.39.1-44.oe2403sp1
util-linux
openEuler:24.03-LTS-SP3
From an advisory covering 5 CVEs
 before 2.39.1-44.oe2403sp3
2.39.1-44.oe2403sp3
util-linux
openEuler:24.03-LTS-SP4
From an advisory covering 4 CVEs
 before 2.39.1-44.oe2403sp4
2.39.1-44.oe2403sp4
util-linux
Rocky Linux:10
From an advisory covering 9 CVEs
 before 0:2.40.2-18.el10_2.20
0:2.40.2-18.el10_2.20
util-linux
Root:Debian:11
 before 2.36.1-8+deb11u2.aikido.11
2.36.1-8+deb11u2.aikido.11
rootio-util-linux
Root:Debian:11
 before 2.36.1-8+deb11u2.aikido.11
2.36.1-8+deb11u2.aikido.11
util-linux
SUSE:Linux Micro 6.0
From an advisory covering 5 CVEs
 before 2.39.3-8.1
2.39.3-8.1
util-linux-systemd
SUSE:Linux Micro 6.0
From an advisory covering 5 CVEs
 before 2.39.3-8.1
2.39.3-8.1
util-linux
SUSE:Linux Micro 6.1
From an advisory covering 5 CVEs
 before 2.40.4-slfo.1.1_7.1
2.40.4-slfo.1.1_7.1
util-linux-systemd
SUSE:Linux Micro 6.1
From an advisory covering 5 CVEs
 before 2.40.4-slfo.1.1_7.1
2.40.4-slfo.1.1_7.1
python-libmount
SUSE:Linux Enterprise Server 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux
SUSE:Linux Enterprise Server 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux-systemd
SUSE:Linux Enterprise Server 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
python-libmount
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux-systemd
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux
SUSE:Linux Micro 6.2
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux-systemd
SUSE:Linux Micro 6.2
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux
SUSE:Linux Enterprise Module for Basesystem 15 SP7
From an advisory covering 5 CVEs
 before 2.40.4-150700.4.18.1
2.40.4-150700.4.18.1
util-linux-systemd
SUSE:Linux Enterprise Module for Basesystem 15 SP7
From an advisory covering 5 CVEs
 before 2.40.4-150700.4.18.1
2.40.4-150700.4.18.1
util-linux-systemd
SUSE:Linux Enterprise Module for Server Applications 15 SP7
From an advisory covering 5 CVEs
 before 2.40.4-150700.4.18.1
2.40.4-150700.4.18.1
util-linux
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 5 CVEs
 before 2.39.3-150600.4.26.1
2.39.3-150600.4.26.1
util-linux-systemd
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 5 CVEs
 before 2.39.3-150600.4.26.1
2.39.3-150600.4.26.1
util-linux
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 5 CVEs
 before 2.39.3-150600.4.26.1
2.39.3-150600.4.26.1
util-linux-systemd
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 5 CVEs
 before 2.39.3-150600.4.26.1
2.39.3-150600.4.26.1
util-linux
SUSE:Linux Enterprise Micro 5.3
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux-systemd
SUSE:Linux Enterprise Micro 5.3
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux
SUSE:Linux Enterprise Micro 5.4
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux-systemd
SUSE:Linux Enterprise Micro 5.4
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux-systemd
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux-systemd
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux-systemd
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux-systemd
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 3 CVEs
 before 2.37.2-150400.8.50.1
2.37.2-150400.8.50.1
util-linux
SUSE:Linux Enterprise Micro 5.5
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux-systemd
SUSE:Linux Enterprise Micro 5.5
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux-systemd
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux-systemd
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux-systemd
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
util-linux-systemd
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 3 CVEs
 before 2.37.4-150500.9.32.1
2.37.4-150500.9.32.1
python-libmount
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.33.2-4.57.1
2.33.2-4.57.1
util-linux
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.33.2-4.57.1
2.33.2-4.57.1
util-linux-systemd
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 3 CVEs
 before 2.33.2-4.57.1
2.33.2-4.57.1
python-libmount
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 3 CVEs
 before 2.33.2-4.57.1
2.33.2-4.57.1
util-linux
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 3 CVEs
 before 2.33.2-4.57.1
2.33.2-4.57.1
util-linux-systemd
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 3 CVEs
 before 2.33.2-4.57.1
2.33.2-4.57.1
util-linux
Ubuntu:14.04:LTS
 All versions, plus listed versions
2.20.1-5.1ubuntu92.20.1-5.1ubuntu102.20.1-5.1ubuntu112.20.1-5.1ubuntu122.20.1-5.1ubuntu13
Show 14 moreShow less
2.20.1-5.1ubuntu142.20.1-5.1ubuntu152.20.1-5.1ubuntu162.20.1-5.1ubuntu172.20.1-5.1ubuntu182.20.1-5.1ubuntu192.20.1-5.1ubuntu202.20.1-5.1ubuntu20.12.20.1-5.1ubuntu20.22.20.1-5.1ubuntu20.32.20.1-5.1ubuntu20.42.20.1-5.1ubuntu20.62.20.1-5.1ubuntu20.72.20.1-5.1ubuntu20.9
 None known
util-linux
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
2.26.2-6ubuntu32.27-3ubuntu12.27.1-1ubuntu22.27.1-1ubuntu32.27.1-1ubuntu4
Show 15 moreShow less
2.27.1-3ubuntu12.27.1-4ubuntu12.27.1-6ubuntu12.27.1-6ubuntu22.27.1-6ubuntu32.27.1-6ubuntu3.12.27.1-6ubuntu3.22.27.1-6ubuntu3.32.27.1-6ubuntu3.42.27.1-6ubuntu3.62.27.1-6ubuntu3.72.27.1-6ubuntu3.82.27.1-6ubuntu3.92.27.1-6ubuntu3.102.27.1-6ubuntu3.10+esm2
 None known
util-linux
Ubuntu:18.04:LTS
 All versions, plus listed versions
2.30.1-0ubuntu42.30.2-0.1ubuntu12.30.2-0.1ubuntu22.30.2-0.1ubuntu32.31.1-0.4ubuntu2
Show 8 moreShow less
2.31.1-0.4ubuntu32.31.1-0.4ubuntu3.12.31.1-0.4ubuntu3.22.31.1-0.4ubuntu3.32.31.1-0.4ubuntu3.42.31.1-0.4ubuntu3.52.31.1-0.4ubuntu3.62.31.1-0.4ubuntu3.7
 None known
util-linux
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
2.34-0.1ubuntu22.34-0.1ubuntu42.34-0.1ubuntu52.34-0.1ubuntu62.34-0.1ubuntu7
Show 8 moreShow less
2.34-0.1ubuntu82.34-0.1ubuntu92.34-0.1ubuntu9.12.34-0.1ubuntu9.32.34-0.1ubuntu9.42.34-0.1ubuntu9.52.34-0.1ubuntu9.62.34-0.1ubuntu9.6+esm1
 None known
util-linux
Ubuntu:22.04:LTS
 before 2.37.2-4ubuntu3.6, plus listed versions
2.36.1-8ubuntu12.37.2-4ubuntu12.37.2-4ubuntu22.37.2-4ubuntu32.37.2-4ubuntu3.32.37.2-4ubuntu3.42.37.2-4ubuntu3.5
2.37.2-4ubuntu3.6
util-linux
Ubuntu:24.04:LTS
 before 2.39.3-9ubuntu6.6, plus listed versions
2.39.1-4ubuntu22.39.2-6ubuntu12.39.3-6ubuntu22.39.3-9ubuntu22.39.3-9ubuntu4
Show 6 moreShow less
2.39.3-9ubuntu62.39.3-9ubuntu6.12.39.3-9ubuntu6.22.39.3-9ubuntu6.32.39.3-9ubuntu6.42.39.3-9ubuntu6.5
2.39.3-9ubuntu6.6
util-linux
Ubuntu:25.10
 All versions, plus listed versions
2.40.2-14ubuntu12.41-4ubuntu22.41-4ubuntu32.41-4ubuntu42.41-4ubuntu4.12.41-4ubuntu4.2
 None known
util-linux
Ubuntu:26.10
 All versions, plus listed versions
2.41.3-3ubuntu22.42.2-1ubuntu2
 None known
util-linux
Ubuntu:26.04:LTS
 before 2.41.3-3ubuntu2.2, plus listed versions
2.41-4ubuntu42.41.2-4ubuntu12.41.2-4ubuntu22.41.2-4ubuntu32.41.3-3ubuntu12.41.3-3ubuntu2
2.41.3-3ubuntu2.2
util-linux
Ubuntu:22.04:LTS
From an advisory covering 7 CVEs
 before 2.37.2-4ubuntu3.6, plus listed versions
2.36.1-8ubuntu12.37.2-4ubuntu12.37.2-4ubuntu22.37.2-4ubuntu32.37.2-4ubuntu3.32.37.2-4ubuntu3.42.37.2-4ubuntu3.5
2.37.2-4ubuntu3.6
util-linux
Ubuntu:24.04:LTS
From an advisory covering 7 CVEs
 before 2.39.3-9ubuntu6.6, plus listed versions
2.39.1-4ubuntu22.39.2-6ubuntu12.39.3-6ubuntu22.39.3-9ubuntu22.39.3-9ubuntu4
Show 6 moreShow less
2.39.3-9ubuntu62.39.3-9ubuntu6.12.39.3-9ubuntu6.22.39.3-9ubuntu6.32.39.3-9ubuntu6.42.39.3-9ubuntu6.5
2.39.3-9ubuntu6.6
util-linux
Ubuntu:26.04:LTS
From an advisory covering 7 CVEs
 before 2.41.3-3ubuntu2.2, plus listed versions
2.41-4ubuntu42.41.2-4ubuntu12.41.2-4ubuntu22.41.2-4ubuntu32.41.3-3ubuntu12.41.3-3ubuntu2
2.41.3-3ubuntu2.2
util-linux
openSUSE:Tumbleweed
From an advisory covering 4 CVEs
 before 2.42.2-1.1
2.42.2-1.1
python-libmount
openSUSE:Leap 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux
openSUSE:Leap 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1
util-linux-systemd
openSUSE:Leap 16.0
From an advisory covering 8 CVEs
 before 2.41.1-160000.5.1
2.41.1-160000.5.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubmohamedjawady/CVE-2026-53613-poc2026-08-26

History

History
RecordedChangedSources
affectedOSV
affected
factsOSV
affected, aliases, referencesOSV
first indexedCVE List, EUVD, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-53613 is a high vulnerability (CVSS 7.0) in Util-linux, published June 18, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. Fixed in util-linux 2.41.6-r0.

References

Show 96 moreShow less
This page doesn't list everything

Left out here: 70 versions. The JSON record has them.

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