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CVE-2024-32657 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:4.6 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/NixOS/hydra/commit/b72528be5074f3e62e9ae2c2ae8ef9c07a0b4dd3	CVE	Patch
https://github.com/NixOS/hydra/security/advisories/GHSA-2p75-6g9f-pqgx	CVE	Vendor Advisory
https://github.com/NixOS/nixpkgs/pull/306017	CVE	Issue Tracking
https://github.com/NixOS/nixpkgs/pull/306018	CVE	Issue Tracking
https://github.com/NixOS/hydra/commit/b72528be5074f3e62e9ae2c2ae8ef9c07a0b4dd3	[email protected]	Patch
https://github.com/NixOS/hydra/security/advisories/GHSA-2p75-6g9f-pqgx	[email protected]	Vendor Advisory
https://github.com/NixOS/nixpkgs/pull/306017	[email protected]	Issue Tracking
https://github.com/NixOS/nixpkgs/pull/306018	[email protected]	Issue Tracking

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
nixos hydra	< 23.11
CPE cpe:2.3:a:nixos:hydra:::::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Sep 22, 2025	Initial Analysis	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Apr 22, 2024	New CVE Received	[email protected]