Vulnerability Description
LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, the LightRAG API server returns raw Python exception text from error handlers in document_routes.py, graph_routes.py, query_routes.py, ollama_api.py, and lightrag_server.py. The detail=str(e), detail=str(exc), and equivalent formatted-message paths expose server filesystem paths, database host, port, user, and database names, language-model provider diagnostics, configuration details, and Python library internals to a network client that can trigger an error. The default unauthenticated configuration makes those responses reachable without credentials, and URI-configured backends can disclose connection strings containing credentials depending on the underlying driver error. This issue is fixed in version 1.5.5.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/HKUDS/LightRAG/commit/4d90a0eb35d40b45f3a9045e308ec126897a336
- https://github.com/HKUDS/LightRAG/commit/dcab315d7dc1eea682e9b2c4fcb1b06474484c4
- https://github.com/HKUDS/LightRAG/pull/3422
- https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5
- https://github.com/HKUDS/LightRAG/security/advisories/GHSA-hrmj-7rvj-4hg8
- https://github.com/HKUDS/LightRAG/security/advisories/GHSA-hrmj-7rvj-4hg8
FAQ
What is CVE-2026-85709?
CVE-2026-85709 is a vulnerability with a CVSS score of 5.3 (MEDIUM). LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, the LightRAG API server returns raw Python exception text from error handlers in document_routes.py, graph_routes.py, ...
How severe is CVE-2026-85709?
CVE-2026-85709 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85709?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.