CVE-2024-45049

7.5 highEPSS 0.6%

High (7.5) in nixos hydra. EPSS 0.6% chance of exploitation in the next 30 days.

Hydra is a Continuous Integration service for Nix based projects. It is possible to trigger evaluations in Hydra without any authentication. Depending on the size of evaluations, this can impact the availability of systems. The problem can be fixed by applying https://github.com/NixOS/hydra/commit/f73043378907c2c7e44f633ad764c8bdd1c947d5 to any Hydra package. Users are advised to upgrade. Users unable to upgrade should deny the `/api/push` route in a reverse proxy. This also breaks the "Evaluate jobset" button in the frontend.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2024-08-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nixos:hydra

References

https://github.com/NixOS/hydra/commit/f73043378907c2c7e44f633ad764c8bdd1c947d5
https://github.com/NixOS/hydra/security/advisories/GHSA-xv29-v93r-2f5v
https://github.com/NixOS/nixpkgs/pull/337766
https://mastodon.delroth.net/@delroth/113029832631860419

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