ydra 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.
| Link | Resource |
|---|---|
| https://github.com/NixOS/hydra/commit/b72528be5074f3e62e9ae2c2ae8ef9c07a0b4dd3 | Patch |
| https://github.com/NixOS/hydra/security/advisories/GHSA-2p75-6g9f-pqgx | Vendor Advisory |
| https://github.com/NixOS/nixpkgs/pull/306017 | Issue Tracking |
| https://github.com/NixOS/nixpkgs/pull/306018 | Issue Tracking |
| https://github.com/NixOS/hydra/commit/b72528be5074f3e62e9ae2c2ae8ef9c07a0b4dd3 | Patch |
| https://github.com/NixOS/hydra/security/advisories/GHSA-2p75-6g9f-pqgx | Vendor Advisory |
| https://github.com/NixOS/nixpkgs/pull/306017 | Issue Tracking |
| https://github.com/NixOS/nixpkgs/pull/306018 | Issue Tracking |
22 Sep 2025, 14:10
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Nixos hydra
Nixos |
|
| CPE | cpe:2.3:a:nixos:hydra:*:*:*:*:*:*:*:* | |
| References | () https://github.com/NixOS/hydra/commit/b72528be5074f3e62e9ae2c2ae8ef9c07a0b4dd3 - Patch | |
| References | () https://github.com/NixOS/hydra/security/advisories/GHSA-2p75-6g9f-pqgx - Vendor Advisory | |
| References | () https://github.com/NixOS/nixpkgs/pull/306017 - Issue Tracking | |
| References | () https://github.com/NixOS/nixpkgs/pull/306018 - Issue Tracking |
21 Nov 2024, 09:15
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/NixOS/hydra/commit/b72528be5074f3e62e9ae2c2ae8ef9c07a0b4dd3 - | |
| References | () https://github.com/NixOS/hydra/security/advisories/GHSA-2p75-6g9f-pqgx - | |
| References | () https://github.com/NixOS/nixpkgs/pull/306017 - | |
| References | () https://github.com/NixOS/nixpkgs/pull/306018 - |
Published : 2024-04-22 23:15
Updated : 2025-09-22 14:10
NVD link : CVE-2024-32657
Mitre link : CVE-2024-32657
CVE.ORG link : CVE-2024-32657
JSON object : View
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')