{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-85734", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-04T14:50:16.719Z", "datePublished": "2026-09-22T16:18:14.144Z", "dateUpdated": "2026-09-22T17:43:42.025Z"}, "containers": {"cna": {"title": "LightRAG: No Rate Limiting on /login Endpoint Allows Brute-Force Attacks", "problemTypes": [{"descriptions": [{"cweId": "CWE-307", "lang": "en", "description": "CWE-307: Improper Restriction of Excessive Authentication Attempts", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/HKUDS/LightRAG/security/advisories/GHSA-frch-4w6v-q5xx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/HKUDS/LightRAG/security/advisories/GHSA-frch-4w6v-q5xx"}, {"name": "https://github.com/HKUDS/LightRAG/pull/3424", "tags": ["x_refsource_MISC"], "url": "https://github.com/HKUDS/LightRAG/pull/3424"}, {"name": "https://github.com/HKUDS/LightRAG/commit/135bc9056e9ecd800c1abe2f2ce24d1a86622a54", "tags": ["x_refsource_MISC"], "url": "https://github.com/HKUDS/LightRAG/commit/135bc9056e9ecd800c1abe2f2ce24d1a86622a54"}, {"name": "https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5"}], "affected": [{"vendor": "HKUDS", "product": "LightRAG", "versions": [{"version": "< 1.5.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-22T16:18:14.144Z"}, "descriptions": [{"lang": "en", "value": "LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, the POST /login endpoint in lightrag/api/lightrag_server.py does not impose a rate limit, account lockout, delay, or counter for failed authentication attempts. A network attacker can submit password guesses at full request speed until a valid account password is found. Successful credential recovery grants authenticated access to documents, the knowledge graph, and administrative operations. This issue is fixed in version 1.5.5."}], "source": {"advisory": "GHSA-frch-4w6v-q5xx", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T17:36:54.076707Z", "id": "CVE-2026-85734", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T17:43:42.025Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "LightRAG", "vendor": "HKUDS", "versions": [{"status": "affected", "version": "< 1.5.5"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.5, the POST /login endpoint in lightrag/api/lightrag_server.py does not impose a rate limit, account lockout, delay, or counter for failed authentication attempts. A network attacker can submit password guesses at full request speed until a valid account password is found. Successful credential recovery grants authenticated access to documents, the knowledge graph, and administrative operations. This issue is fixed in version 1.5.5."}], "id": "CVE-2026-85734", "lastModified": "2026-09-22T17:17:27.483", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-22T17:17:27.367", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/commit/135bc9056e9ecd800c1abe2f2ce24d1a86622a54"}, {"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/pull/3424"}, {"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/releases/tag/v1.5.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/security/advisories/GHSA-frch-4w6v-q5xx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-307"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.5.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "LightRAG", "source": "cna", "vendor": "HKUDS"}, "product": "lightrag", "vendor": "hkuds"}], "created": "2026-09-22T17:30:18.466562+00:00", "updated": "2026-09-22T17:30:18.466582+00:00", "vendors": ["hkuds", "hkuds$PRODUCT$lightrag"]}