What’s Vulnerable › Vulnerabilities

CVE-2026-61808: LightRAG: Missing Authentication for Critical API Functions in Default Configuration

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-08-07 · updated 2026-10-24
• Weakness: CWE-306

Description

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 products

• HKUDS LightRAG: before 1.5.5rc1

References

• https://github.com/HKUDS/LightRAG/commit/0bd102401b4b28a02664e5b6af476bf7a4470292
• https://github.com/HKUDS/LightRAG/security/advisories/GHSA-mmg5-8x8q-v934
• https://github.com/HKUDS/LightRAG/security/advisories/GHSA-mmg5-8x8q-v934

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