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CVE-2026-64865: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in QuantumNous new-api

0
Medium
VulnerabilityCVE-2026-64865cvecve-2026-64865cwe-362gcveosvghsa-j6gc-4893-qwmpghsago
Published: 08/17/2026 (08/17/2026, 16:13:37 UTC)
Source: CVE Database V5
Vendor/Project: QuantumNous
Product: new-api

Description

CVE-2026-64865 is a race condition vulnerability in QuantumNous new-api, an AI asset management system. Before version 1.0.0-rc.16, concurrent PUT requests to update user data could cause improper synchronization in quota management, allowing authenticated users to artificially maintain a higher cached quota. This issue is fixed in version 1.0.0-rc.16.

CVSS v4.0

Score 6.0medium

Attack Vector
Network
Attack Complexity
High
Attack Requirements
Present
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
High
Vuln. Availability
Low
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

Affected software

QuantumNous

new-api

Affected versions
<1.0.0-rc.16
GitHub Actionsmore threats →ai
quantumnous/new-api
pkg:github/quantumnous/new-api
Affected versions
=1.0.0-rc.16

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/12/2026, 01:38:05 UTC

Technical Analysis

QuantumNous new-api versions prior to 1.0.0-rc.16 suffer from a race condition (CWE-362) during concurrent execution of PUT /api/user/self requests that update language or sidebar_modules. The controller calls User.Update and updateUserCache performs a full Redis HSet write to user:.Quota, which can overwrite concurrent HINCRBY deductions. This improper synchronization allows an authenticated user to keep their cached quota artificially high. The vulnerability is resolved in version 1.0.0-rc.16.

Potential Impact

An authenticated user can exploit this race condition to maintain an artificially high cached quota by causing concurrent updates to overwrite quota deductions. This could lead to quota mismanagement and potential abuse of system resources.

Mitigation Recommendations

Upgrade QuantumNous new-api to version 1.0.0-rc.16 or later, where this race condition vulnerability has been fixed.

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Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-07-20T18:31:39.292Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6a83368ebf8831d53930a3b4

Added to database: 08/17/2026, 16:27:58 UTC

Last enriched: 09/12/2026, 01:38:05 UTC

Last updated: 10/03/2026, 02:46:06 UTC

Views: 59

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