CVE-2026-61808: critical vulnerability in HKUDS LightRAG
LightRAG: Missing Authentication for Critical API Functions in Default Configuration
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
43Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 9.8epss 2.5%
LightRAG provides simple and fast retrieval-augmented generation. Through version 1.5.4, the LightRAG API server binds to all network interfaces with authentication disabled by default, allowing an unauthenticated network attacker to read indexed document content, upload or delete documents, modify the knowledge graph, cancel pipelines, clear caches, and consume LLM resources. This issue is mitigated in version 1.5.5rc1.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
HKUDS · LightRAGRelated CVEs — HKUDS LightRAG
In the same product, most dangerous first.
CVE-2026-61736CRITICALLightRAG: CORS Wildcard + Credentials Enables Any-Origin Credentialed RequestsEPSS 1.4%CVE-2026-85734CRITICALLightRAG: No Rate Limiting on /login Endpoint Allows Brute-Force AttacksEPSS 0.6%CVE-2026-61740CRITICALLightRAG: Authentication bypass: hardcoded DEFAULT_TOKEN_SECRET and public /auth-status defeat LIGHTRAG_API_KEY protectionEPSS 0.5%CVE-2026-85725MEDIUMLightRAG: Plaintext Passwords Compared Without Constant-Time FunctionEPSS 0.4%CVE-2026-85709MEDIUMLightRAG: Sensitive Information Exposure Through Raw Exception Messages in API Error ResponsesEPSS 0.4%CVE-2026-86062MEDIUMLightRAG: Stored Cross-Site Scripting (XSS) in the LightRAG WebUI chat/answer renderer via ingested contentEPSS 0.3%