CVE-2025-52991

LOW

Nix/Lix/Guix <2.24.15/2.26.4/2.28.4/2.29.1 - Info Disclosure

Title source: llm

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.

References (6)

[Various Sources] https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017

[Various Sources] https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerabilities-2025/

[Various Sources] https://lix.systems/blog/2025-06-24-lix-cves/

[Third Party Advisory] https://security-tracker.debian.org/tracker/CVE-2025-52991

[Third Party Advisory] https://labs.snyk.io

[Third Party Advisory] https://security.snyk.io/vuln/?search=CVE-2025-52991

Scores

CVSS v3 3.2

EPSS 0.0008

EPSS Percentile 23.7%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-276

Status published

Products (4)

NixOS/Nix < 2.24.15

NixOS/Nix 2.25.0 - 2.26.4

NixOS/Nix 2.27.0 - 2.28.4

NixOS/Nix 2.29.0 - 2.29.1

Published Jun 27, 2025

Tracked Since Feb 18, 2026