CVE-2026-71479
New API: Integer overflow in quota billing yields negative charges (self-crediting)
- State
- Published
- Severity
- 9.1 Critical
- Published
- Aug 17, 2026
- Updated
- Aug 17, 2026
- Reserved
- Aug 6, 2026
Description
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.18, user-controlled image n, video seconds and duration, max_tokens, max_completion_tokens, maxOutputTokens, audio duration, and billing-expression quantities can overflow conversions in common/quota_math.go and related settlement paths, allowing a low-privileged account with positive balance or an active subscription to turn a negative charge into account credit and potentially drain upstream funds. This issue is fixed in version 1.0.0-rc.18.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
new-apiQuantumNous |
|
References
- https://github.com/QuantumNous/new-api/security/advisories/GHSA-8r8v-xf7q-rcpr
- https://github.com/QuantumNous/new-api/commit/c9943d37ad93477dd937fc4901cc3c4e0fd8aaab
- https://github.com/QuantumNous/new-api/commit/d0bd8aac742d1e160a5ca61743fe35f4fff880e8
- https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.18
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