EUVD-2026-60263
GHSA-j6gc-4893-qwmp
Severity by source
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable endpoint requires authenticated low-privilege user (PR:L) and successful race timing (AC:H); quota overwrite is high integrity impact, minor availability impact from quota exhaustion side effects, no confidentiality loss.
Primary rating from Vendor (github).
CVSS VectorVendor: github
Lifecycle Timeline
3DescriptionCVE.org
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to 1.0.0-rc.16, repeated PUT /api/user/self requests that update language or sidebar_modules can race relay billing because controller/user.go calls User.Update and updateUserCache performs a full RedisHSetObj write to user:.Quota, overwriting concurrent HINCRBY deductions and allowing an authenticated user to keep cached quota artificially high. This issue is fixed in version 1.0.0-rc.16.
AnalysisAI
Quota bypass via Redis cache race condition in New API (QuantumNous LLM gateway) allows any authenticated low-privilege user to keep their cached quota balance artificially inflated by flooding PUT /api/user/self with settings updates while concurrently consuming quota. The settings update path reads a stale full User snapshot and writes it back via RedisHSetObj, atomically overwriting HINCRBY billing deductions applied by concurrent relay requests to the same Redis hash key. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three concurrent conditions: (1) a valid authenticated account with at minimum low privileges (PR:L confirmed by CVSS 4.0 vector) - anonymous access is insufficient; (2) Redis quota caching must be enabled in the deployment (AT:P in CVSS 4.0 explicitly encodes this as an attack requirement - deployments relying solely on database-backed quota checks are not affected by this race path); and (3) the attacker must successfully time PUT /api/user/self settings updates to race concurrently executing billing HINCRBY operations (AC:H), requiring sustained concurrent request volume rather than a single crafted packet. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:H/AT:P/PR:L) scores 6.0 (Medium), which accurately reflects real-world priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to New API v1.0.0-rc.16 or later, available at https://github.com/QuantumNous/new-api/releases/tag/v1.0.0-rc.16; the patch commit is dfc0d6324b40c1d6c2972e524409f933541bfb0f. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-362 – Race Condition
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External POC / Exploit Code
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