CVE-2025-53819

Nix's privilege dropping to build user broke for macOS

Description

Nix is a package manager for Linux and other Unix systems. Builds with Nix 2.30.0 on macOS were executed with elevated privileges (root), instead of the build users. The fix was applied to Nix 2.30.1. No known workarounds are available.

Category

7.9
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Affected: NixOS nix
Published at:
Updated at:

References

Link Tags
https://github.com/NixOS/nix/security/advisories/GHSA-qc7j-jgf3-qmhg
https://github.com/NixOS/nix/pull/13281
https://github.com/NixOS/nix/pull/13455
https://github.com/NixOS/nix/commit/e2ef2cfcbc83ea01308ee64c38a58707ab23dec3

Frequently Asked Questions

What is the severity of CVE-2025-53819?
CVE-2025-53819 has been scored as a high severity vulnerability.
How to fix CVE-2025-53819?
To fix CVE-2025-53819, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-53819 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-53819 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-53819?
CVE-2025-53819 affects NixOS nix.
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