CVE-2026-61736 PUBLISHED

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

Assigner: GitHub_M
Reserved: 10.07.2026 Published: 15.07.2026 Updated: 15.07.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS Score: 9.3

Product Status

Vendor HKUDS
Product LightRAG
Versions
  • Version < 1.5.4 is affected

References

Problem Types

  • CWE-942: Permissive Cross-domain Policy with Untrusted Domains CWE