CVE-2024-36050 — Nix through 2

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-05-18T21:24:10.412Z
• Last modified: 2025-06-27T11:59:52.999Z

09References

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