Critical 9.1Published Aug 17, 2026

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

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects QuantumNous new-api. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for QuantumNous new-api

Exploited in the last 30 days

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.

CVSS: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-190, CWE-682
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

QuantumNous new-api quantumnous:new_api (from the name)	before 1.0.0-rc.18	CNA record

References

https://github.com/QuantumNous/new-api/security/advisories/GHSA-8r8v-xf7q-rcprx-refsource-confirm
https://github.com/QuantumNous/new-api/commit/c9943d37ad93477dd937fc4901cc3c4e0fd8aaabx-refsource-misc
https://github.com/QuantumNous/new-api/commit/d0bd8aac742d1e160a5ca61743fe35f4fff880e8x-refsource-misc
https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.18x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.