CVE-2025-52993
Medium
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.
SeverityMedium
CVSS5.6
Exploit probability—
ProductNix
PublishedJun 27, 2025
First seenJun 27, 2025
Weakness typeCWE-362Race condition
How to fix
Update
- NixOS Nix2.24.15, 2.26.4, 2.28.4, 2.29.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| NixOS Nix | v < 2.24.15, 2.25.0 ≤ v < 2.26.4, 2.27.0 ≤ v < 2.28.4, 2.29.0 ≤ v < 2.29.1 | 2.24.15, 2.26.4, 2.28.4, 2.29.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.