CVE-2025-46416

Description

The Nix, Lix, and Guix package managers allow a bypass of build isolation in which a user can elevate their privileges to the build user account (e.g., nixbld or guixbuild). This affects Nix through 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix through 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

CVSS v3.1 Score

2.9

LOW

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-282 CWE-282

References

Other References

https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017 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-2025-46416 https://security.snyk.io/vuln/?search=CVE-2025-46416

Frequently Asked Questions

What is CVE-2025-46416? +

The Nix, Lix, and Guix package managers allow a bypass of build isolation in which a user can elevate their privileges to the build user account (e.g., nixbld or guixbuild). This affects Nix through 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix through 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b. It has a CVSS v3.1 base score of 2.9 (LOW).

How severe is CVE-2025-46416? +

CVE-2025-46416 has a CVSS v3.1 score of 2.9 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

How do I check if I'm vulnerable to CVE-2025-46416? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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