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.

CVSS v3 9.4 CRITICAL

9.4^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

26 Oct 2026, 14:10

Type	Values Removed	Values Added
Summary		(es) Gradient es un sistema de integración continua basado en Nix. En la versión 1.1.0, cuando GRADIENT_DISCOVERABLE=true (el valor predeterminado, y el predeterminado del módulo NixOS), cualquiera que pueda acceder a /proto puede registrarse como un trabajador sin credenciales enviando un UUID de trabajador nuevo y nunca antes registrado. La sesión resultante tiene PeerAuth::Open, es decir, ve trabajos de cada organización y puede inmediatamente NarPush/NarUploaded rutas de almacenamiento arbitrarias en nar_storage y la tabla cached_path. Esta vulnerabilidad se corrige en la versión 1.1.1.

Information

Published : 2026-05-14 19:16

Updated : 2026-10-26 14:10

NVD link : CVE-2026-44592

Mitre link : CVE-2026-44592

CVE.ORG link : CVE-2026-44592

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

CWE-345

Insufficient Verification of Data Authenticity

CWE-862

Missing Authorization

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