CVE-2026-44592

CRITICAL EPSS 5.2%

Published May 14, 20261mo ago · Modified Jun 17, 20262w ago

9.4 CVSS 3.1

Critical

Published May 14, 2026 1mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

9.4

Exploitability

3.9

Impact

5.5

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

5.2% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 3

CWE-306 Missing Authentication for Critical Function Authentication

CWE-345

CWE-862 Missing Authorization Authorization

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.