QuantumNous new-api up to 0.12.10 Quota Math common/quota_math.go integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in QuantumNous new-api. Affected by this vulnerability is an unknown functionality of the file common/quota_math.go of the component Quota Math. The manipulation of the argument n/video_seconds/duration/max_tokens/max_completion_tokens/maxOutputTokens/audio_duration/billing-expression leads to integer overflow. This vulnerability is referenced as CVE-2026-71479. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in QuantumNous new-api and classified as critical. This issue affects an unknown code of the file common/quota_math.go of the component Quota Math. The manipulation of the argument n/video_seconds/duration/max_tokens/max_completion_tokens/maxOutputTokens/audio_duration/billing-expression with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-71479 since 08/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

Upgrading to version 1.0.0-rc.18 eliminates this vulnerability.

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Productinfo

Type

• Automation Software

Vendor

• QuantumNous

Name

• new-api

Version

• 0.8.5.2
• 0.9.0.5
• 0.9.6
• 0.10.8-alpha.9
• 0.10.8-alpha.10
• 0.11.4-alpha.2
• 0.12.0-alpha.1
• 0.12.10

Website

• Product: https://github.com/QuantumNous/new-api/

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