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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| HKUDS | LightRAG | < 1.5.4 | — |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- LightRAG <= 1.5.3 - Credentialed CORS Wildcard http/cves/2026/CVE-2026-61736.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | lightrag-hku | < 1.5.4 | 1.5.4 | GHSA-6x6h-qqr7-855w |
References
- https://github.com/HKUDS/LightRAG/security/advisories/GHSA-6x6h-qqr7-855w
- https://github.com/HKUDS/LightRAG/pull/3317
- https://github.com/HKUDS/LightRAG/commit/09567a4c983f580050db63569dd477122c058c3d
- https://github.com/HKUDS/LightRAG/commit/df68d75f9dc29dd340ffb6794b48f48c4fdc9a2d
- https://github.com/HKUDS/LightRAG/commit/ebba6548639c0f2e8919100eff76b401f1222252
- https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4