CVE-2026-61808

LightRAG: Missing Authentication for Critical API Functions in Default Configuration

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.

Affected

HKUDS · LightRAG

CVSS v3.1 GITHUB

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

2.50% chance of exploitation in the next 30 days, 84th percentile

Nuclei

high · CWE-22

Published

2026-08-07

Updated

2026-08-10

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-61808.yaml

References

• CVE Record
• NVD entry