What’s Vulnerable › Vulnerabilities

CVE-2026-71479: New API: Integer overflow in quota billing yields negative charges (self-crediting)

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-17 · updated 2026-10-24
• Weakness: CWE-190

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: before 1.0.0-rc.18

References

• 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
• https://github.com/QuantumNous/new-api/security/advisories/GHSA-8r8v-xf7q-rcpr

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