🛡️ CVE-2024-32657
🟡 CVSS 4.6 — Medium ✅ No Known Exploit CWE-79 NVD
4.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Hydra is a Continuous Integration service for Nix based projects. Attackers can execute arbitrary code in the browser context of Hydra and execute authenticated HTTP requests. The abused feature allows Nix builds to specify files that Hydra serves to clients. One use of this functionality is serving NixOS `.iso` files. The issue is only with html files served by Hydra. The issue has been patched on https://hydra.nixos.org around 2024-04-21 14:30 UTC. The nixpkgs package were fixed in unstable and 23.11. Users with custom Hydra packages can apply the fix commit to their local installations. The vulnerability is only triggered when opening HTML build artifacts, so not opening them until the vulnerability is fixed works around the issue.

Details

Severity MEDIUM
CVSS Score 4.6
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CWE CWE-79
Public Exploit ✅ No
Source NVD
Published 2024-04-22
Updated 2026-06-02
Modified 2025-09-22

Affected Packages

Software From version Fixed in
hydra — 23.11

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