CVE-2026-64865: Quantumnous New-API

Medium severity, CVSS 6.0. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Quantumnous New-API: before 1.0.0-rc.16 (fixed in 1.0.0-rc.16)

Published 2026-08-17. Last modified 2026-09-18.