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VulnerabilityPublished Updated

CVE-2026-61808: HKUDS LightRAG · Missing Authentication

Affects HKUDS LightRAGSource CVE Database V5

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Not known to be exploited · public detection template (Nuclei) · CVSS 9.8 Critical : upgrade to 1.5.5rc1 as a priority.

Data as of 7 Nov 2026, 23:24 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.4% chance of exploitation in 30 days – higher than 84% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.5.5rc1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Aug 2026

  2. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  3. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  4. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade HKUDS LightRAG to 1.5.5rc1.

Affected software

ProductAffectedFixed in
HKUDSLightRAGAffected
  • <1.5.5rc1
Fixed in
  • 1.5.5rc1
GitHubhkuds/LightRAGpkg:github/hkuds/LightRAGOther threatsAffected
  • <=1.5.4
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade to LightRAG version 1.5.5rc1 or later, where authentication is enabled by default on the API server. Until the upgrade is applied, restrict network access to the API server to trusted hosts only to reduce exposure. Patch status is not explicitly confirmed as 'official-fix' but the vendor has released a mitigating version 1.5.5rc1.

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.

References

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