Security fix · CVE-2026-44653
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers.
Published Jun 2, 2026 · corrected/updated Jul 21, 2026 · librechat librechat · evidence confidence medium
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only access to an MCP server can retrieve the server's decrypted admin-managed secrets through and . The returned config includes plaintext values for and . This allows viewers of a shared MCP server to exfiltrate the underlying provider credentials. Version 0.8..4 contains a patch. Other remediations include: never returning decrypted admin-managed secrets to non-owners; redacting apiKey.key and oauth.client_secret from all API responses consider returning only boolean presence indicators for secrets, similar to the auth-values route pattern; and, if owners need to edit configs without re-entering secrets, preserving secrets server-side and returning placeholders instead of plaintext.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-44653 is a medium public vulnerability record for librechat librechat. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether librechat librechat is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: librechat/librechat. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 6.5. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-201. Sources contributing to this record: nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jun 2, 2026 · NIST NVD
Detected
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only access to an MCP server can retrieve the server's decrypted admin-managed secrets through and . The returned config includes plaintext values for and . This allows viewers of a shared MCP server to exfiltrate the underlying provider credentials. Version 0.8..4 contains
Jul 21, 2026 · NIST NVD
Updated
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only access to an MCP server can retrieve the server's decrypted admin-managed secrets through and . The returned config includes plaintext values for and . This allows viewers of a shared MCP server to exfiltrate the underlying provider credentials. Version 0.8..4 contains
Affected
- cpe librechat/librechatversion unspecified
Sources
- NIST NVDVulnerability recordCVE-2026-44653
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only access to an MCP server can retrieve the server's decrypted admin-managed secrets through and `GET /api/mcp/servers/:se
nvd.nist.gov