# CVE-2026-71479

## Summary

- **CVE ID:** CVE-2026-71479
- **Severity:** CRITICAL
- **CVSS Score:** 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H)
- **CWE:** CWE-190, CWE-682
- **Published:** Aug 17, 2026
- **Last Modified:** Aug 17, 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.

## Affected Products

- QuantumNous — new-api (< 1.0.0-rc.18)

## References

- [CNA](https://github.com/QuantumNous/new-api/security/advisories/GHSA-8r8v-xf7q-rcpr)
- [CNA](https://github.com/QuantumNous/new-api/commit/c9943d37ad93477dd937fc4901cc3c4e0fd8aaab)
- [CNA](https://github.com/QuantumNous/new-api/commit/d0bd8aac742d1e160a5ca61743fe35f4fff880e8)
- [CNA](https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.18)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.52%
- **EPSS Percentile:** 42.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._