CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Lifecycle Timeline
3Description
In LibreChat 0.8.1-rc2, a logged-in user obtains a JWT for both the LibreChat API and the RAG API.
Analysis
LibreChat 0.8.1-rc2 improperly issues JWT tokens to authenticated users for both the LibreChat API and RAG API without adequate scope separation or validation, enabling token reuse across API boundaries. An authenticated attacker with local access can exploit this misconfiguration to access or manipulate resources in the RAG API using credentials intended only for the main LibreChat API. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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External POC / Exploit Code
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EUVD-2026-12813