CVE-2026-61808Public exploitNetwork attack vectorHinoki check available

Unauthenticated API access via insecure server defaults

Published Aug 7, 2026 · Updated Aug 7, 2026

Missing authentication in the LightRAG API server 1.5.4 and earlier allows remote attackers to read and alter data via exposed endpoints. The combined_auth dependency in lightrag/api/utils_api.py returns without checking identity when both AUTH_ACCOUNTS and LIGHTRAG_API_KEY are unset, while the server binds to 0.0.0.0. A network-reachable default deployment exposes document, graph, pipeline, cache, and LLM operations, including deletion and resource consumption.

CVSS severity9.8
Critical
EPSS probability1.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authentication in the LightRAG API server 1.5.4 and earlier allows remote attackers to read and alter data via exposed endpoints. The combined_auth dependency in lightrag/api/utils_api.py returns without checking identity when both AUTH_ACCOUNTS and LIGHTRAG_API_KEY are unset, while the server binds to 0.0.0.0. A network-reachable default deployment exposes document, graph, pipeline, cache, and LLM operations, including deletion and resource consumption.

The record

CVE
CVE-2026-61808
Published
Aug 7, 2026
Updated
Aug 7, 2026
Vendor
Data Intelligence Lab @ HKU
Product
LightRAG
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.5.5rc1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Data Intelligence Lab @ HKU · LightRAGversion=< 1.5.5rc1

Published CVSS scores

7.3HKUDS LightRAG GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
9.8GitHub, Inc. CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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