# CVE-2024-38531

## Summary

- **CVE ID:** CVE-2024-38531
- **Severity:** LOW
- **CVSS Score:** 3.6 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L)
- **CWE:** CWE-278
- **Published:** Jun 28, 2024
- **Last Modified:** Mar 13, 2026

## Description

Nix is a package manager for Linux and other Unix systems that makes package management reliable and reproducible. A build process has access to and can change the permissions of the build directory. After creating a setuid binary in a globally accessible location, a malicious local user can assume the permissions of a Nix daemon worker and hijack all future builds. This issue was patched in version(s) 2.23.1, 2.22.2, 2.21.3, 2.20.7, 2.19.5 and 2.18.4.

## Affected Products

- NixOS — nix (>= 2.23.0, < 2.23.1)
- NixOS — nix (>= 2.22.0, < 2.22.2)
- NixOS — nix (>= 2.21.0, < 2.21.3)
- NixOS — nix (>= 2.20.0, < 2.20.7)
- NixOS — nix (>= 2.19.0, < 2.19.5)
- NixOS — nix (>= 2.18.0, < 2.18.4)

## References

- [CNA](https://github.com/NixOS/nix/security/advisories/GHSA-q82p-44mg-mgh5)
- [CNA](https://github.com/NixOS/nix/pull/10501)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 4.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._