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CVE-2025-52993

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of...

5.6 Medium

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
Low

Exploit likelihood

0.14%Up 0.1 points since Jun 28, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.6

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
CVE-2025-52993
CVSS 3.1
5.6 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02
EUVDEUVD-2025-19378 5.6

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
EUVD-2025-19378
CVSS 3.1
5.6 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-hpxm-4hff-8prf 5.6

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of...

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
GHSA-hpxm-4hff-8prf
CVSS 3.1
5.6 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02
NVD 5.6

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
CVE-2025-52993
CVSS 3.1
5.6 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness
CWE-362
Updated
2026-11-02
OSVDEBIAN-CVE-2025-52993 5.6

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
DEBIAN-CVE-2025-52993
CVSS 3.1
5.6 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2025-52993 5.6

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
UBUNTU-CVE-2025-52993
CVSS 3.1
5.6 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
Updated
2026-11-02
OSV No score

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Record
CVE-2025-52993
Updated
2026-11-02
OSVopenSUSE-SU-2025:15248-1 No score

nix-2.29.1-1.1 on GA media

These are all security issues fixed in the nix-2.29.1-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2025:15248-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
guix
Debian:11
 All versions, plus listed versions
1.2.0-41.2.0-4+deb11u11.2.0-4+deb11u21.2.0-4+deb11u31.3.0+26720.a2e4e-1
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1.3.0+26756.c07b5-11.3.0+26756.c07b5-21.3.0-11.3.0-21.3.0-31.3.0-41.3.0-51.3.0~rc1-11.4.0+154709.ab1b557d8f3-11.4.0+154710+ab1b5-11.4.0+154710+ab1b5-21.4.0+154928+f1810-11.4.0-11.4.0-21.4.0-31.4.0-41.4.0-51.4.0-61.4.0-71.4.0-81.4.0-91.4.0~rc1-11.4.0~rc1-21.4.0~rc2-1
 None known
guix
Ubuntu:Pro:22.04:LTS
 All versions, plus listed versions
1.2.0-41.3.0-21.3.0-41.3.0-4ubuntu0.1~esm1
 None known
guix
Ubuntu:Pro:24.04:LTS
 All versions, plus listed versions
1.4.0-51.4.0-61.4.0-6build11.4.0-6ubuntu0.1~esm1
 None known
nix
openSUSE:Tumbleweed
From an advisory covering 4 CVEs
 before 2.29.1-1.1
2.29.1-1.1

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-2025-52993 is a medium vulnerability (CVSS 5.6) in Nixos Nix, published June 27, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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