CVE-2025-54800 — Hydra persistent XSS in build metrics
Hydra is a continuous integration service for Nix based projects. Prior to commit dea1e16, a malicious package can introduce arbitrary JavaScript code into the Hydra database th…
Published: 2025-08-12 · CVSS: 7.1 · CVSS 4.0
Hydra is a continuous integration service for Nix based projects. Prior to commit dea1e16, a malicious package can introduce arbitrary JavaScript code into the Hydra database that is automatically evaluated in a client's browser when anyone visits the build page. This could be done by a third-party project as part of its build process. This also happens in other places like with hydra-release-name. This issue has been patched by commit dea1e16. A workaround involves either not building untrusted packages or not visiting the builds page.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7