CVE-2026-31949 — LibreChat Denial of Service (DoS) via Unhandled Exception in DELETE /api/convos
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 authe…
Published: 2026-03-13 · CVSS: 6.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7