Read the docs
TI-2026-44237 Aliases CVE-2026-61808

LightRAG: Missing Authentication for Critical API Functions in Default Configuration

Priority HIGH 82CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02497 84th percentileScored 2026-11-07
Fix Fixed LightRAG (HKUDS): 1.5.5rc1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HKUDSLightRAGbefore 1.5.5rc11.5.5rc1Patch availableCNA
  • LightRAG VendorHKUDS Affected before 1.5.5rc1 Fixed in 1.5.5rc1 Patch available CNA

Remediation

  • Fix · CNA LightRAG (HKUDS) Fixed in 1.5.5rc1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-61808

References

Other 2

  • TI-2026-78721 Missing authentication in HKUDS Vibe-Trading FastAPI server enables RCE CVSS 4.0CRITICAL 9.3
  • TI-2026-44184 Improper authentication in HKUDS LightRAG CVSS 4.0CRITICAL 9.3
  • TI-2026-26034 Zero-Click Indirect Prompt Injection and Authentication Bypass via Email Polling CVSS 4.0HIGH 8.9
  • TI-2026-62432 HKUDS nanobot before 0.3.0 Server-Side Request Forgery via WebFetchTool CVSS 4.0CRITICAL 9.2
  • TI-2026-25310 DeepCode 1.2.0 Path Traversal via SPA Catch-All Route in main.py CVSS 4.0HIGH 8.7
  • TI-2026-27692 nanobot: Cross-Site WebSocket Hijacking in WhatsApp Bridge (CVE-2026-2577 Fix Update) CVSS 3.1CRITICAL 9.3
See all 47 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences