CVE-2025-52991 Information

Description

The Nix Lix and Guix package managers default to using temporary build directories in a world-readable and world-writable location. This allows standard users to deceive the package manager into using directories with pre-existing content potentially leading to unauthorized actions or data manipulation. 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.

Reference

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.snyk.io/vuln/?search=CVE-2025-52991 https://security-tracker.debian.org/tracker/CVE-2025-52991

CNNVD-202506-3530 (Published: 2025-06-27)

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