CVE-2026-61736Public exploitNetwork attack vector

Data theft and deletion via credentialed origin reflection

Published Jul 15, 2026 · Updated Jul 15, 2026

Permissive CORS in Data Intelligence Lab @ HKU LightRAG before 1.5.4 allows remote attackers to read or delete server data via a victim browser. The API server combines its default wildcard CORS_ORIGINS value with allow_credentials=True, causing Starlette to reflect any requesting origin and permit credentialed requests. Exploitation requires an authenticated LightRAG user to visit an attacker-controlled website; successful requests can exfiltrate documents and graph data or delete the document store.

CVSS severity9.3
Critical
EPSS probability1.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Permissive CORS in Data Intelligence Lab @ HKU LightRAG before 1.5.4 allows remote attackers to read or delete server data via a victim browser. The API server combines its default wildcard CORS_ORIGINS value with allow_credentials=True, causing Starlette to reflect any requesting origin and permit credentialed requests. Exploitation requires an authenticated LightRAG user to visit an attacker-controlled website; successful requests can exfiltrate documents and graph data or delete the document store.

The record

CVE
CVE-2026-61736
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Data Intelligence Lab @ HKU
Product
LightRAG
Classifications
CWE-942, T1189
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:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-942Permissive Cross-domain Security Policy with Untrusted Domains
T1189Drive-by Compromise

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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