CVE-2026-61740Public exploitNetwork attack vector

Unauthenticated API access via guest JWT acceptance

Published Jul 15, 2026 · Updated Jul 15, 2026

Authentication bypass in Data Intelligence Lab @ HKU LightRAG before 1.5.4 allows remote attackers to access protected server APIs. In API-key-only deployments, auth.py uses a hardcoded JWT secret while combined_dependency accepts a guest token before checking X-API-Key. With LIGHTRAG_API_KEY set and AUTH_ACCOUNTS unset, this grants unauthenticated document read, upload, deletion, graph mutation, and query access.

CVSS severity9.3
Critical
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Data Intelligence Lab @ HKU LightRAG before 1.5.4 allows remote attackers to access protected server APIs. In API-key-only deployments, auth.py uses a hardcoded JWT secret while combined_dependency accepts a guest token before checking X-API-Key. With LIGHTRAG_API_KEY set and AUTH_ACCOUNTS unset, this grants unauthenticated document read, upload, deletion, graph mutation, and query access.

The record

CVE
CVE-2026-61740
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Data Intelligence Lab @ HKU
Product
LightRAG
Classifications
CWE-287, CWE-798, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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=< 1.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Data Intelligence Lab @ HKU · LightRAGversion=< 1.5.4

Published CVSS scores

9.3GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

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-287Improper Authentication
CWE-798Use of Hard-coded Credentials
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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