CVE-2026-44592CRITICAL 9.4EPSS p5.2%
CVE-2026-44592CVE-2026-44592
Description
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.
Scoring
| CVSS 3.1 | 9.4 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H |
| EPSS | 0.16% probability of exploitation · percentile 5.2% · 2026-06-19T12:03:05Z |
| Published | 2026-05-14 |
| Last modified | 2026-05-15 |
Underlying weaknesses· 3
References
3
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Missing Authentication for Critical Functioncwe-306 | 0% | live |
| Weakness | Insufficient Verification of Data Authenticitycwe-345 | 0% | live |
| Weakness | Missing Authorizationcwe-862 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.