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CVE-2026-61736

9.3 · CRITICAL

LightRAG provides simple and fast retrieval-augmented generation.

Published Jul 15, 2026CWE-942EPSS 1.42%

Overview

CVE-2026-61736 is a critical-severity vulnerability. It was published on July 15, 2026 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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 as deleting the document store. This vulnerability is fixed in 1.5.4.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/HKUDS/LightRAG/commit/09567a4c983f580050db63569dd477122c058c3dGitHubgithub.com/HKUDS/LightRAG/commit/df68d75f9dc29dd340ffb6794b48f48c4fdc9a2dGitHubgithub.com/HKUDS/LightRAG/commit/ebba6548639c0f2e8919100eff76b401f1222252GitHubgithub.com/HKUDS/LightRAG/pull/3317GitHubgithub.com/HKUDS/LightRAG/releases/tag/v1.5.4GitHubgithub.com/HKUDS/LightRAG/security/advisories/GHSA-6x6h-qqr7-855wGitHubgithub.com/HKUDS/LightRAG/security/advisories/GHSA-6x6h-qqr7-855w

How CyberStrike helps

Frequently asked questions

What is CVE-2026-61736?

CVE-2026-61736 is a critical-severity vulnerability. It was published on July 15, 2026 and has a CVSS 3.1 base score of 9.3 (CRITICAL).

How severe is CVE-2026-61736?

This vulnerability has a CVSS 3.1 base score of 9.3, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-61736?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-61736?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-61736 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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