CVE-2026-44592
Full vulnerability record from the local CVENow database.
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.
Severity
CRITICAL
CVSS score
9.4
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-05-14 19:16:38.147000
Last modified
2026-10-26 14:10:00.130000
View original CVE JSON
{
"id": "CVE-2026-44592",
"sourceIdentifier": "[email protected]",
"published": "2026-05-14T19:16:38.147",
"lastModified": "2026-10-26T14:10:00.130",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "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."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "wavelens",
"product": "gradient",
"versions": [
{
"version": "1.1.0",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H",
"baseScore": 9.4,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.5
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-05-16T00:50:40.449652Z",
"id": "CVE-2026-44592",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-306"
},
{
"lang": "en",
"value": "CWE-345"
},
{
"lang": "en",
"value": "CWE-862"
}
]
}
],
"references": [
{
"url": "https://github.com/wavelens/gradient/security/advisories/GHSA-49w6-gf3p-96m2",
"source": "[email protected]"
}
]
}