Denial of Service Vulnerability in LibreChat by Danny Avila
CVE-2026-31949

6.5MEDIUM

Key Information:

Vendor

Danny-avila

Status
Librechat
Vendor
CVE Published:
13 March 2026

What is CVE-2026-31949?

LibreChat, a ChatGPT clone developed by Danny Avila, exposes a Denial of Service vulnerability in its DELETE /api/convos endpoint for versions prior to 0.8.3-rc1. An authenticated attacker can exploit this vulnerability by sending malformed requests that do not properly validate inputs. This leads to a crash of the Node.js server process due to an unhandled TypeError, which bypasses existing Express error handling middleware, ultimately terminating the server unexpectedly. This issue has been addressed in the 0.8.3-rc1 release, highlighting the importance of input validation and error management.

Affected Version(s)

LibreChat < 0.8.3-rc1

References

https://github.com/danny-avila/LibreChat/security/advisor...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.