Information disclosure in Quantumnous New-Api
CVE-2026-64859
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.
Vulnerability class: Information Disclosure
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Quantumnous New-api — versions < 1.0.0-rc.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-64859?
- CVE-2026-64859 is a critical-severity vulnerability in Quantumnous New-Api, classified under Information Disclosure. CVSS score: 9.1/10. Published 2026-08-17.
- How severe is CVE-2026-64859?
- Critical severity. CVSS v3 base score is 9.1 out of 10.