Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix
- https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025/
- https://labs.snyk.io
- https://lix.systems/blog/2025-06-24-lix-cves/
- https://security-tracker.debian.org/tracker/CVE-2025-52993
- https://security.snyk.io/vuln/?search=CVE-2025-52993
FAQ
What is CVE-2025-52993?
CVE-2025-52993 is a vulnerability with a CVSS score 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 befor...
How severe is CVE-2025-52993?
CVE-2025-52993 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-52993?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.