CRITICAL

CVE-2026-61736

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

CVSS v3

9.3

CRITICAL

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

known exploited

Exploitation

—

SSVC status

Description

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

Technical details

Published: 2026-07-15
Last Modified: 2026-07-15
GitHub Advisory: GHSA-6x6h-qqr7-855w

Frequently asked questions

What is CVE-2026-61736?

Is CVE-2026-61736 actively exploited?

Active exploitation of CVE-2026-61736 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-61736?

CVE-2026-61736 has a CVSS v3 base score of 9.3 (CRITICAL severity).

Is CVE-2026-61736 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

Check an IP Search CVEs SIEM & TIP integrations

No credit card required · 500 free checks/month · Free API key

Other 2026 vulnerabilities worth triaging

Ranked by exploit probability (EPSS).

Back to CVE Database