{"data":{"id":"267e4022-bfc6-4f8e-836d-9ec2d94c96c4","title":"CVE-2026-54037: LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for…","summary":"LibreChat versions prior to 0.8.4-rc1 had a rate-limiting gap. The fix for CVE-2025-7105 added forkIpLimiter and forkUserLimiter to POST /api/convos/fork, but the POST /api/convos/duplicate endpoint in the same file, which runs the same expensive database operations, received no limiter. An authenticated user can exhaust server resources by calling /duplicate instead of /fork.","solution":"Fixed in 0.8.4-rc1.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54037","publishedAt":"2026-06-25T17:16:41.000Z","cveId":"CVE-2026-54037","cweIds":["CWE-770"],"cvssScore":"6.5","cvssSeverity":"medium","severity":"medium","attackType":["denial_of_service"],"issueType":"vulnerability","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":["LibreChat"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"LibreChat rate limit bypass via unlimited POST /api/convos/duplicate requests","headlinePromptVersion":"h1","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"network","attackComplexity":"low","privilegesRequired":"low","userInteraction":"none","exploitMaturity":"unknown","epssScore":0.00512,"epssCheckedAt":"2026-11-09T06:13:52.512Z","kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":"2026-11-10T00:11:43.461Z","patchAvailable":null,"disclosureDate":"2026-06-25T17:16:41.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":["CAPEC-130"],"crossRefCount":0,"attackSophistication":"trivial","impactType":["availability"],"aiComponentTargeted":"api","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null,"fixes":[]}}