6.0
MEDIUM CVSS 4.0
CVE-2026-64865
New API: Redis user quota cache overwrite via PUT /api/user/self allows quota bypass
Description

New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.16, repeated PUT /api/user/self requests that update language or sidebar_modules can race relay billing because controller/user.go calls User.Update and updateUserCache performs a full RedisHSetObj write to user:.Quota, overwriting concurrent HINCRBY deductions and allowing an authenticated user to keep cached quota artificially high. This issue is fixed in version 1.0.0-rc.16.

INFO

Published Date :

Aug. 17, 2026, 4:17 p.m.

Last Modified :

Aug. 17, 2026, 4:17 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-64865 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Quantumnous new-api
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 MEDIUM [email protected]
Solution
Update the LLM gateway to version 1.0.0-rc.16 to fix the race condition.
  • Update the New API gateway to version 1.0.0-rc.16.
  • Apply the latest security patches and updates.
  • Monitor user quota after update.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-64865.

URL Resource
https://github.com/QuantumNous/new-api/commit/dfc0d6324b40c1d6c2972e524409f933541bfb0f
https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.16
https://github.com/QuantumNous/new-api/security/advisories/GHSA-j6gc-4893-qwmp
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-64865 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-64865 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-64865 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-64865 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Aug. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'QuantumNous', 'product': 'new-api', 'versions': [{'status': 'affected', 'version': '< 1.0.0-rc.16'}]}]
    Added Description New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.16, repeated PUT /api/user/self requests that update language or sidebar_modules can race relay billing because controller/user.go calls User.Update and updateUserCache performs a full RedisHSetObj write to user:.Quota, overwriting concurrent HINCRBY deductions and allowing an authenticated user to keep cached quota artificially high. This issue is fixed in version 1.0.0-rc.16.
    Added CVSS V4.0 AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-362
    Added Reference https://github.com/QuantumNous/new-api/commit/dfc0d6324b40c1d6c2972e524409f933541bfb0f
    Added Reference https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.16
    Added Reference https://github.com/QuantumNous/new-api/security/advisories/GHSA-j6gc-4893-qwmp
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.