CVE-2026-31949

Published: Mar 13, 2026 Last Modified: Mar 17, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 4 Days)

248

Uncaught Exception

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Read Application Data
Applicable Platforms
Languages: C#, C++, Java
View CWE Details
Application

Librechat by Librechat

Product Information
Vendor Librechat
Product Librechat
Version Range Affected
To 0.8.3 (exclusive)
cpe:2.3:a:librechat:librechat:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/danny-avila/LibreChat/security/advisorie…
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-5m32-chq6-232p