CVE-2026-61808 json
LightRAG: Missing Authentication for Critical API Functions in Default Configuration
published 2026-08-07 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-54644
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known, plus a Nuclei check
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.
Patch / fix
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
2.50% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template LightRAG <= 1.5.4 - Missing Authentication nuclei detection template
- github.com https://github.com/HKUDS/LightRAG/security/advisories/GHSA-mmg5-8x8q-v934 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- HKUDS LightRAG
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
Sources
- CVE List CVE-2026-61808
- NVD CVE-2026-61808
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