SB2026042787 - Improper Authorization in LibreChat
Published: April 27, 2026
Security Bulletin ID
SB2026042787
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authorization (CVE-ID: CVE-2025-54868)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper authorization in /api/search/test when handling search requests to the Meilisearch engine. A remote attacker can send a specially crafted request to disclose sensitive information.
If the q parameter is omitted, arbitrary chats may be returned.
Remediation
Install update from vendor's website.