CVE-2026-31949

Description

LibreChat is a ChatGPT clone with additional features. Prior to 0.8.3-rc1, a Denial of Service (DoS) vulnerability exists in the DELETE /api/convos endpoint that allows an authenticated attacker to crash the Node.js server process by sending malformed requests. The DELETE /api/convos route handler attempts to destructure req.body.arg without validating that it exists. The server crashes due to an unhandled TypeError that bypasses Express error handling middleware and triggers process.exit(1). This vulnerability is fixed in 0.8.3-rc1.

PUBLISHED Reserved 2026-03-10 | Published 2026-03-13 | Updated 2026-03-13 | Assigner GitHub_M

Problem types

CWE-248: Uncaught Exception

Product status

References

github.com/...reChat/security/advisories/GHSA-5m32-chq6-232p

cve.org (CVE-2026-31949)

nvd.nist.gov (CVE-2026-31949)

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