PT-2026-52495 · Librechat · Librechat

Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-54033

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions LibreChat versions prior to 0.8.4-rc1

Description LibreChat allows authenticated users to configure custom OpenAI-compatible API endpoints by setting a baseURL. The application fails to perform Server-Side Request Forgery (SSRF) validation on this URL, lacking private IP checks, scheme restrictions, and DNS pinning. This allows a user to set the baseURL to internal network addresses, potentially enabling requests to be sent to internal systems.

Recommendations Update to version 0.8.4-rc1.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-54033

Affected Products

Librechat

References · 3

• 🔥 https://github.com/danny-avila/LibreChat/security/advisories/GHSA-gc9r-88c3-7qhq · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-54033 · Security Note
• https://twitter.com/KaitanSecurity/status/2070205395625275656 · Twitter Post