CVE-2026-44592

Gradient is a nix-based continuous integration system. In 1.1.0, when GRADIENT_DISCOVERABLE=true (the default, and the NixOS module default), anyone who can reach /proto can register as a worker without any credentials by sending a fresh, never-registered worker UUID. The resulting session has PeerAuth::Open, i.e. it sees jobs from every organisation, and can immediately NarPush/NarUploaded arbitrary store paths into nar_storage and the cached_path table. This vulnerability is fixed in 1.1.1.

• CWE-306
• CWE-345
• CWE-862

• https://github.com/wavelens/gradient/security/advisories/GHSA-49w6-gf3p-96m2

Published

May 14, 2026

Last Modified

Jun 17, 2026

Status

Deferred

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