CVE-2026-61736

CRITICAL 9.3

LightRAG: CORS Wildcard + Credentials Enables Any-Origin Credentialed Requests

CVSS Score

9.3

EPSS Score

0.0%

EPSS Percentile

0th

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, the server defaults to CORS_ORIGINS=* combined with allow_credentials=True in lightrag/api/lightrag_server.py, causing Starlette CORSMiddleware to effectively whitelist every origin for credentialed cross-origin requests. Any malicious website visited by an authenticated LightRAG user can silently make authenticated API requests, exfiltrating documents and knowledge graph data or performing destructive actions such as deleting the document store. This vulnerability is fixed in 1.5.4.

CWE	CWE-942
Vendor	hkuds
Product	lightrag
Published	Jul 15, 2026
Last Updated	Jul 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

HKUDS / LightRAG

< 1.5.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/HKUDS/LightRAG/security/advisories/GHSA-6x6h-qqr7-855w github.com: https://github.com/HKUDS/LightRAG/pull/3317 github.com: https://github.com/HKUDS/LightRAG/commit/09567a4c983f580050db63569dd477122c058c3d github.com: https://github.com/HKUDS/LightRAG/commit/df68d75f9dc29dd340ffb6794b48f48c4fdc9a2d github.com: https://github.com/HKUDS/LightRAG/commit/ebba6548639c0f2e8919100eff76b401f1222252 github.com: https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4