Remote Code Execution Vulnerability in LightRAG API Server
CVE-2026-61808

9.8CRITICAL

Key Information:

Vendor

Hkuds

Status
Lightrag
Vendor
CVE Published:
7 August 2026

What is CVE-2026-61808?

The LightRAG API server, prior to version 1.5.5rc1, is exposed to a serious flaw where it binds to all network interfaces with disabled authentication by default. This vulnerability permits an unauthenticated network attacker to access sensitive indexed document content, as well as to perform various actions such as uploading or deleting documents, altering the knowledge graph, disrupting processing pipelines, clearing caches, and consuming language model resources. This issue highlights the critical importance of securing API endpoints to prevent unauthorized access and manipulation.

Affected Version(s)

LightRAG < 1.5.5rc1

References

https://github.com/HKUDS/LightRAG/security/advisories/GHS...
x_refsource_CONFIRM
https://github.com/HKUDS/LightRAG/commit/0bd102401b4b28a0...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.