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CVE-2026-61736— LightRAG: CORS Wildcard + Credentials Enables Any-Origin Credentialed Requests

Quick assessment

Affected
HKUDS LightRAG
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HKUDS LightRAG是HKUDS开源的一款检索增强生成框架。 HKUDS LightRAG 1.5.4之前版本存在配置错误漏洞，该漏洞源于CORS_ORIGINS=*与allow_credentials=True的组合，可能导致已验证用户访问恶意网站时静默执行API请求，泄露文档和知识图谱数据或执行删除文档库等破坏性操作。

CVSS 9.3 · Critical EPSS 1.42% · P72

Public Exploits 1

Nuclei · 1 CVE-2026-61736.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
HKUDS LightRAG < 1.5.4 affected
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I. Basic Information for CVE-2026-61736

Vulnerability Information
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Vulnerability Title
LightRAG: CORS Wildcard + Credentials Enables Any-Origin Credentialed Requests
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过度许可的跨域白名单
Source: CVE Program / CVE List V5
Vulnerability Title
HKUDS LightRAG 配置错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HKUDS LightRAG是HKUDS开源的一款检索增强生成框架。 HKUDS LightRAG 1.5.4之前版本存在配置错误漏洞，该漏洞源于CORS_ORIGINS=*与allow_credentials=True的组合，可能导致已验证用户访问恶意网站时静默执行API请求，泄露文档和知识图谱数据或执行删除文档库等破坏性操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HKUDS LightRAG < 1.5.4 -

II. Public POCs for CVE-2026-61736

# POC Description Source Link Shenlong Link
1 LightRAG <= 1.5.4 contains a broken access control vulnerability caused by default CORS_ORIGINS=* with allow_credentials=True in lightrag_server.py, letting malicious websites perform authenticated API requests, exploit requires authenticated user. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-61736.yaml POC Details
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 11142 chars
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III. Intelligence Information for CVE-2026-61736

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Patches & Fixes for CVE-2026-61736 (4)

Vendor Advisories for CVE-2026-61736 (1)

Other References for CVE-2026-61736 (1)

IV. Related Vulnerabilities

Same product: LightRAG
Same vendor: HKUDS
Same weakness: CWE-942

V. Comments for CVE-2026-61736

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