CVE-2026-64859CWE-200information-disclosure

CVE-2026-64859

Critical · published August 17, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
49.3
In the wild
Unconfirmed
What it is

New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.7, the admin user list and user lookup APIs, including GET /api/user/, return User.AccessToken as access_token because User model objects are serialized after queries use Omit("password"), allowing an authenticated administrator to obtain the root user's bearer token and access root-only system configuration APIs. This issue is fixed in version 1.0.0-rc.7.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00626 · 49.3th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-08-17T20:17Z
References (4)
https://github.com/QuantumNous/new-api/commit/0936e2504655a5cbf7bc3c388f6d3e2bb24916d3 · [email protected]https://github.com/QuantumNous/new-api/pull/4929 · [email protected]https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.7 · [email protected]https://github.com/QuantumNous/new-api/security/advisories/GHSA-6x2c-phff-wx57 · [email protected]
EPSS history
Timeline
  • 17 AUG 15:42Z
    New API: User List API Leaks Root User Access Token Leading to Privilege Escalation
    cvelistv5