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CVE

CVE-2026-61736

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

CVE-2026-61736

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

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, the server defaults to CORSORIGINS=* combined with allowcredentials=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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://github.com/HKUDS/LightRAG/releases/tag/v1.5.4, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61736.json, https://github.com/HKUDS/LightRAG/security/advisories/GHSA-6x6h-qqr7-855w, https://nvd.nist.gov/vuln/detail/CVE-2026-61736, 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/pull/3317

Severity

9.3

CVSS Score
0
10

Basic Information

Base CVSS
9.3
EPSS Probability
0.00532%
EPSS Percentile
0.42638%
Introduced Version
0
Fix Available
9a45b64c2ee25b1d806e90db926a8af37480bb16

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