CVE-2026-64859: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in QuantumNous new-api
CVE-2026-64859 is a critical vulnerability in QuantumNous new-api prior to version 1.0.0-rc.7. It allows an authenticated administrator to obtain the root user's bearer token via the admin user list and user lookup APIs, exposing sensitive access tokens. This exposure occurs because User model objects are serialized after queries that omit the password field but still include the access token. The issue is fixed in version 1.0.0-rc.7.
AI Analysis
Technical Summary
QuantumNous new-api versions before 1.0.0-rc.7 have an information exposure vulnerability (CWE-200) where the admin user list and user lookup APIs return the User.AccessToken as access_token. This happens because the serialization of User model objects occurs after queries that omit the password field but do not exclude the access token. Consequently, an authenticated administrator can retrieve the root user's bearer token and access root-only system configuration APIs. The vulnerability is resolved in version 1.0.0-rc.7.
Potential Impact
An authenticated administrator can obtain the root user's bearer token, which grants access to root-only system configuration APIs. This leads to a complete compromise of the system's configuration and potentially full control over the affected system. The CVSS score of 9.1 reflects the critical severity and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade QuantumNous new-api to version 1.0.0-rc.7 or later, where this vulnerability is fixed. No other mitigation is indicated or necessary as the fix addresses the root cause.
CVE-2026-64859: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in QuantumNous new-api
Description
CVE-2026-64859 is a critical vulnerability in QuantumNous new-api prior to version 1.0.0-rc.7. It allows an authenticated administrator to obtain the root user's bearer token via the admin user list and user lookup APIs, exposing sensitive access tokens. This exposure occurs because User model objects are serialized after queries that omit the password field but still include the access token. The issue is fixed in version 1.0.0-rc.7.
CVSS v3.1
Score 9.1critical
Affected software
pkg:github/quantumnous/new-apiRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
QuantumNous new-api versions before 1.0.0-rc.7 have an information exposure vulnerability (CWE-200) where the admin user list and user lookup APIs return the User.AccessToken as access_token. This happens because the serialization of User model objects occurs after queries that omit the password field but do not exclude the access token. Consequently, an authenticated administrator can retrieve the root user's bearer token and access root-only system configuration APIs. The vulnerability is resolved in version 1.0.0-rc.7.
Potential Impact
An authenticated administrator can obtain the root user's bearer token, which grants access to root-only system configuration APIs. This leads to a complete compromise of the system's configuration and potentially full control over the affected system. The CVSS score of 9.1 reflects the critical severity and high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade QuantumNous new-api to version 1.0.0-rc.7 or later, where this vulnerability is fixed. No other mitigation is indicated or necessary as the fix addresses the root cause.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-20T18:31:39.291Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a833694bf8831d53930a51b
Added to database: 08/17/2026, 16:28:04 UTC
Last enriched: 08/17/2026, 16:41:15 UTC
Last updated: 08/17/2026, 16:41:15 UTC
Views: 3
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