CVE-2026-61740

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{"affected": [{"affectedData": [{"product": "LightRAG", "vendor": "HKUDS", "versions": [{"status": "affected", "version": "< 1.5.4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, when LightRAG is deployed with LIGHTRAG_API_KEY set but AUTH_ACCOUNTS unset, X-API-Key protection can be bypassed because lightrag/api/auth.py falls back to a hardcoded DEFAULT_TOKEN_SECRET, /auth-status and /login can mint guest JWTs, and combined_dependency in lightrag/api/utils_api.py accepts a valid guest token before checking the API key. A remote unauthenticated attacker can call endpoints guarded by combined_auth, including document read, upload, deletion, graph mutation, and query endpoints. This vulnerability is fixed in 1.5.4."}, {"lang": "es", "value": "LightRAG proporciona generaci\u00f3n aumentada por recuperaci\u00f3n simple y r\u00e1pida. Antes de 1.5.4, cuando LightRAG se despliega con LIGHTRAG_API_KEY configurada pero AUTH_ACCOUNTS no configurada, la protecci\u00f3n de X-API-Key puede ser eludida porque lightrag/api/auth.py recurre a un DEFAULT_TOKEN_SECRET codificado de forma r\u00edgida, /auth-status y /login pueden emitir JWTs de invitado, y combined_dependency en lightrag/api/utils_api.py acepta un token de invitado v\u00e1lido antes de verificar la clave API. Un atacante remoto no autenticado puede llamar a los puntos finales protegidos por combined_auth, incluyendo lectura de documentos, carga, eliminaci\u00f3n, mutaci\u00f3n de grafos y puntos finales de consulta. Esta vulnerabilidad est\u00e1 corregida en 1.5.4."}], "id": "CVE-2026-61740", "lastModified": "2026-10-24T21:10:00.130", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-61740", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-15T15:14:50.443978Z", "version": "2.0.3"}}]}, "published": "2026-07-15T15:16:48.350", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/commit/f7819aa3a49a9d8d92eed8251d82d6ebcafa8cba"}, {"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/pull/3319"}, {"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/HKUDS/LightRAG/security/advisories/GHSA-f4vv-55c2-5789"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/HKUDS/LightRAG/security/advisories/GHSA-f4vv-55c2-5789"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-798"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.5.4)"}}], "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": "2026-07-15T20:15:14.852449+00:00", "updated": "2026-07-31T03:45:04.678281+00:00", "vendors": ["hkuds", "hkuds$PRODUCT$lightrag"]}