{"data":{"id":"b65a3aa6-d3b4-4093-ac47-f43543ee2ce0","title":"CVE-2026-31950: LibreChat is a ChatGPT clone with additional features. In versions 0.8.2-rc2 through 0.8.2-rc3, the SSE streaming…","summary":"CVE-2026-31950 affects LibreChat in versions 0.8.2-rc2 through 0.8.2-rc3. The SSE streaming endpoint `/api/agents/chat/stream/:streamId` does not check that the requesting user owns the stream, so any authenticated user holding a valid stream ID can subscribe and read another user's real-time chat content, including messages, AI responses and tool invocations. The weakness is classified as CWE-284, Improper Access Control.","solution":"Version 0.8.2 patches the issue.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-31950","publishedAt":"2026-03-27T20:16:30.217Z","cveId":"CVE-2026-31950","cweIds":["CWE-284"],"cvssScore":"5.3","cvssSeverity":"medium","severity":"medium","attackType":["other"],"issueType":"vulnerability","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":["LibreChat"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"LibreChat SSE streaming endpoint exposes other users' chat content","headlinePromptVersion":"h1","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"network","attackComplexity":"high","privilegesRequired":"low","userInteraction":"none","exploitMaturity":"unknown","epssScore":0.00217,"epssCheckedAt":"2026-11-10T00:11:22.622Z","kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":"2026-11-03T18:10:49.679Z","patchAvailable":null,"disclosureDate":"2026-03-27T20:16:30.217Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality"],"aiComponentTargeted":"inference","llmSpecific":true,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null,"fixes":[]}}