CVE-2024-45049

Name: CVE-2024-45049
Creator: NVD / NIST
Published: 2024-08-27T21:15:07.603+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2024-45049 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Hydra is a Continuous Integration service for Nix based projects. It is possible to trigger evaluations in Hydra without any authentication. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.62%

45.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-306

Affected Software

Vendor	Product	Versions
Nixos	Hydra	< 2024-08-27

References

https://github.com/NixOS/hydra/commit/f73043378907c2c7e44f633ad764c8bdd1c947d5Patch
https://github.com/NixOS/hydra/security/advisories/GHSA-xv29-v93r-2f5vPatch, Vendor Advisory
https://github.com/NixOS/nixpkgs/pull/337766Issue Tracking, Patch
https://mastodon.delroth.net/@delroth/113029832631860419Third Party Advisory

Timeline

Published: Aug 27, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-45049?

How severe is CVE-2024-45049?

CVE-2024-45049 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2024-45049?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-45049?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST