{"id":"CVE-2026-44653","summary":"LibreChat Shared MCP Server View Leaks Decrypted Admin Secrets","details":"LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. In versions up to and including 0.8.3, users with only `VIEW` access to an MCP server can retrieve the server's decrypted admin-managed secrets through `GET /api/mcp/servers` and `GET /api/mcp/servers/:serverName`. The returned config includes plaintext values for `apiKey.key` and `oauth.client_secret`. 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.","aliases":["GHSA-6vqg-rgpm-qvf9"],"modified":"2026-07-15T01:49:12.809746728Z","published":"2026-06-02T22:40:20.672Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44653.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-201"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44653.json"},{"type":"ADVISORY","url":"https://github.com/danny-avila/LibreChat/security/advisories/GHSA-6vqg-rgpm-qvf9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44653"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/danny-avila/librechat","events":[{"introduced":"0"},{"fixed":"0736ff26686e911c9785a237c63a799db1813f0b"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.8.4"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:librechat:librechat:*:*:*:*:*:*:*:*"}}],"versions":["v0.8.4-rc1","chart-2.0.1","v0.8.3","chart-2.0.0","v0.8.3-rc2","chart-1.9.9","v0.8.3-rc1","chart-1.9.8","v0.8.2","chart-1.9.7","v0.8.2-rc3","chart-1.9.6","v0.8.2-rc2","chart-1.9.5","v0.8.2-rc1","v0.8.1","chart-1.9.4","v0.8.1-rc2","chart-1.9.3","v0.8.1-rc1","chart-1.9.2","v0.8.0","chart-1.9.1","v0.8.0-rc4","chart-1.9.0","v0.8.0-rc3","v0.8.0-rc2","v0.8.0-rc1","v0.7.9","librechat-1.8.9","v0.7.9-rc1","v0.7.8","v0.7.8-rc1","v0.7.7","v0.7.7-rc1","v0.7.6","v0.7.6-rc1","v0.7.5","v0.7.5-rc2","v0.7.5-rc1","v0.7.4","v0.7.4-rc1","v0.7.3","v0.7.3-rc2","v0.7.3-rc","v0.7.2","v0.7.1","v0.7.0","v0.6.10","v0.6.9","v0.6.6","v0.6.5","v0.6.1","v0.6.0","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.8","v0.4.7","v0.4.6","v0.4.5","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.3","v0.3.0","v0.2.0","v0.1.1","v0.1.0","v0.0.6","v0.0.3","v0.0.2","v0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44653.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}