CVE-2024-32657

CVE-2024-32657 affects Hydra, the CI service for Nix-based projects. The vulnerability arises from a feature that lets Nix builds specify files served to clients, with HTML build artifacts being exploitable in the browser context and capable of triggering arbitrary code execution when viewed. Imp...

CVE-2024-45049

CVE-2024-45049 affects Hydra, a CI service for Nix-based projects. The issue allows triggering evaluations without authentication, with potential impact to system availability depending on evaluation size. The advisory provides a fix: apply the commit f73043378907c2c7e44f633ad764c8bdd1c947d5 to H...

CVE-2025-54864

CVE-2025-54864 affects Hydra (Nix-based CI) where the endpoints /api/push-github and /api/push-gitea were called without HTTP Basic authentication, despite the forges implementing HMAC with a secret key. The root cause is missing authentication on those calls, enabling heavy evaluations that can ...

CVE-2025-32435

CVE-2025-32435 affects Hydra, a CI service for Nix-based projects. The issue arises from evaluating untrusted non-flake nix code, which could allow access to secrets owned by hydra user/group. The description notes that signing keys owned by hydra-queue-runner and hydra-www are not affected. Publ...

CVE-2025-54800

CVE-2025-54800 describes a persistent XSS in Hydra (Nix-based CI) where a malicious package could inject arbitrary JavaScript into Hydra’s database, which then gets evaluated in a client’s browser when visiting the build page. The issue is stated as fixed by commit dea1e16; workarounds include no...