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CVE-2026-92205

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability

6.1 Medium

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
Low

Exploit likelihood

0.31%Unchanged since Oct 22, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.1

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Record
CVE-2026-92205
CVSS 3.0
6.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Weakness
CWE-22
Updated
2026-11-02
EUVDEUVD-2026-107403 6.1

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Record
EUVD-2026-107403
CVSS 3.0
6.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-gmrm-4288-44px 6.1

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This...

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Record
GHSA-gmrm-4288-44px
CVSS 3.0
6.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Weakness
CWE-22
Updated
2026-11-02
NVD 6.1

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Record
CVE-2026-92205
CVSS 3.0
6.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Weakness
CWE-22
Updated
2026-11-02
OSVDEBIAN-CVE-2026-92205 6.1

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Record
DEBIAN-CVE-2026-92205
CVSS 3.0
6.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2026-92205 6.1

BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.

Record
UBUNTU-CVE-2026-92205
CVSS 3.0
6.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
Updated
2026-11-02
OSVopenSUSE-SU-2026:12376-1 No score

busybox-1.38.0-4.1 on GA media

These are all security issues fixed in the busybox-1.38.0-4.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12376-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
busybox
Debian:12
All versions, plus listed versions
1:1.35.0-41:1.35.0-4+deb12u11:1.36.0-1~exp11:1.36.1-11:1.36.1-2
Show 23 moreShow less
1:1.36.1-31:1.36.1-3.11:1.36.1-41:1.36.1-51:1.36.1-61:1.36.1-6~exp.11:1.36.1-71:1.36.1-81:1.36.1-91:1.37.0-11:1.37.0-101:1.37.0-10.11:1.37.0-21:1.37.0-31:1.37.0-41:1.37.0-51:1.37.0-61:1.37.0-71:1.37.0-81:1.37.0-91:1.38.0-11:1.38.0-21:1.38.0-3
None known
busybox
Debian:13
All versions, plus listed versions
1:1.37.0-101:1.37.0-10.11:1.37.0-61:1.37.0-71:1.37.0-8
Show 4 moreShow less
1:1.37.0-91:1.38.0-11:1.38.0-21:1.38.0-3
None known
busybox
Debian:14
All versions, plus listed versions
1:1.37.0-101:1.37.0-10.11:1.37.0-61:1.37.0-71:1.37.0-8
Show 4 moreShow less
1:1.37.0-91:1.38.0-11:1.38.0-21:1.38.0-3
None known
busybox
Ubuntu:Pro:14.04:LTS
All versions, plus listed versions
1:1.20.0-8.1ubuntu11:1.20.0-9ubuntu11:1.20.0-9ubuntu21:1.21.0-1ubuntu11:1.21.0-1ubuntu1.41:1.21.0-1ubuntu1.4+esm1
None known
busybox
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
1:1.22.0-15ubuntu11:1.22.0-15ubuntu1.41:1.22.0-15ubuntu1.4+esm11:1.22.0-15ubuntu1.4+esm2
None known
busybox
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
1:1.22.0-19ubuntu21:1.27.2-1ubuntu31:1.27.2-1ubuntu41:1.27.2-2ubuntu21:1.27.2-2ubuntu3
Show 5 moreShow less
1:1.27.2-2ubuntu3.11:1.27.2-2ubuntu3.21:1.27.2-2ubuntu3.31:1.27.2-2ubuntu3.41:1.27.2-2ubuntu3.4+esm1
None known
busybox
Ubuntu:20.04:LTS
All versions, plus listed versions
1:1.30.1-4ubuntu41:1.30.1-4ubuntu51:1.30.1-4ubuntu61:1.30.1-4ubuntu6.11:1.30.1-4ubuntu6.21:1.30.1-4ubuntu6.31:1.30.1-4ubuntu6.41:1.30.1-4ubuntu6.5
None known
busybox
Ubuntu:22.04:LTS
All versions, plus listed versions
1:1.30.1-6ubuntu31:1.30.1-7ubuntu11:1.30.1-7ubuntu21:1.30.1-7ubuntu31:1.30.1-7ubuntu3.1
None known
busybox
Ubuntu:24.04:LTS
All versions, plus listed versions
1:1.36.1-3ubuntu11:1.36.1-6ubuntu11:1.36.1-6ubuntu31:1.36.1-6ubuntu3.1
None known
busybox
Ubuntu:26.10
All versions, plus listed versions
1:1.37.0-7ubuntu11:1.37.0-10.1ubuntu21:1.37.0-10.1ubuntu31:1.38.0-3ubuntu11:1.38.0-3ubuntu31:1.38.0-3ubuntu4
None known
busybox
Ubuntu:26.04:LTS
All versions, plus listed versions
1:1.37.0-4ubuntu11:1.37.0-7ubuntu1
None known
busybox
openSUSE:Tumbleweed
From an advisory covering 8 CVEs
before 1.38.0-4.1
1.38.0-4.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-92205 is a medium vulnerability (CVSS 6.1) in Busybox, published October 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 24th percentile. No source names a fixed version.

References

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