{"id":"CVE-2026-85709","title":"LightRAG provides simple and fast retrieval-augmented generation","summary":"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 l…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-209"],"vendor":"HKUDS","product":"LightRAG","affected":["LightRAG < 1.5.5"],"published":"2026-09-22","updated":"2026-09-22","sourceUpdated":"2026-09-22T19:16:54.750","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85709","references":[{"url":"https://github.com/HKUDS/LightRAG/commit/4d90a0eb35d40b45f3a9045e308ec126897a3364","label":"security-advisories@github.com"},{"url":"https://github.com/HKUDS/LightRAG/commit/dcab315d7dc1eea682e9b2c4fcb1b06474484c47","label":"security-advisories@github.com"},{"url":"https://github.com/HKUDS/LightRAG/pull/3422","label":"security-advisories@github.com"},{"url":"https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5","label":"security-advisories@github.com"},{"url":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-hrmj-7rvj-4hg8","label":"security-advisories@github.com"},{"url":"https://github.com/HKUDS/LightRAG/security/advisories/GHSA-hrmj-7rvj-4hg8","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85709"},{"url":"https://github.com/advisories/GHSA-hrmj-7rvj-4hg8"}],"tags":["nvd","cve.org","exploit-available","ghsa","pip"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-22T18:11:51.350421Z"},"ingestedAt":"2026-09-22T17:07:07.385Z","aliases":["GHSA-hrmj-7rvj-4hg8"],"ecosystem":"pip","patched":["lightrag-hku 1.5.5"],"slug":"CVE-2026-85709","body":"## Overview\n\nLightRAG 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-85709)\n\nAffected packages:\n\n- `lightrag-hku <= 1.5.4`\n\nPatched in:\n\n- `lightrag-hku 1.5.5`\n\nSource: https://github.com/advisories/GHSA-hrmj-7rvj-4hg8","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":209339,"id":"CVE-2026-85709","ts":1790104208191,"field":"exploit_available","old":"false","new":"true"}]}