What is the CVSS score of EUVD-2026-44670?

EUVD-2026-44670 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N. EPSS exploitation probability: 0.3%.

Is there a public PoC exploit available for EUVD-2026-44670?

Yes, a public proof-of-concept exploit is available for EUVD-2026-44670. Prioritise patching immediately. EPSS: 0.3%.

Lightrag EUVD-2026-44670

Q: Which versions of Lightrag are affected by EUVD-2026-44670?

LightRAG server versions before 1.5.4 contain a critical vulnerability allowing attackers to hijack authenticated user sessions and steal or destroy sensitive knowledge-base data when victims visit…. A patch is available.

Q: How to fix or mitigate EUVD-2026-44670?

Within 24 hours, audit all LightRAG deployments to identify instances running versions prior to 1.5.4 and assess data criticality. Within 7 days, deploy the vendor patch to version 1.5.4 across all systems, prioritizing production instances first, or if upgrading immediately is not feasible, restrict access via network controls and disable cross-domain requests at the application layer. Within 30 days, confirm patch deployment across all systems, review access logs for evidence of exploitation, and verify no instances remain pre-1.5.4.

| CVE-2026-61736 CRITICAL

Permissive Cross-domain Security Policy with Untrusted Domains (CWE-942)

2026-07-15 GitHub_M

GHSA-6x6h-qqr7-855w

Information Disclosure Cors Misconfiguration Lightrag Hkuds

9.3

CVSS 3.1 · Vendor: GitHub_M

View

Vulnerability Assessment

Weakness

CWE

CWE-942

OWASP Top 10:2025

A02:2025 - Security Misconfiguration

ASVS 5.0

V13 - Configuration CORS policy restriction

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.

Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 15, 2026

Cross-origin data theft in LightRAG server versions prior to 1.5.4 allows any malicious website to make authenticated, credentialed API calls on behalf of a logged-in victim because the server ships with CORS_ORIGINS=* paired with allow_credentials=True. When an authenticated LightRAG user browses to an attacker-controlled page, that page can silently read documents and knowledge-graph data or issue destructive requests such as deleting the entire document store. No public exploit has been identified at time of analysis and the flaw is not in CISA KEV, but the fix is confirmed released in version 1.5.4.

Affected VersionsENISA

LightRAG < 1.5.4

Affected Packages

pypi lightrag-hku fix: 1.5.4

euvd lightrag fix: 1.5.4

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in pypi, euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GitHub_M) PRIMARY 9.3 CRITICAL

AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Primary rating from Vendor (GitHub_M) · only source for this CVE.

CVSS VectorVendor: GitHub_M

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Patch available

Jul 15, 2026 - 17:48 EUVD

CVE Published

Jul 15, 2026 - 14:12 cve.org

CRITICAL 9.3

DescriptionCVE.org

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, the server defaults to CORS_ORIGINS=* combined with allow_credentials=True in lightrag/api/lightrag_server.py, causing Starlette CORSMiddleware to effectively whitelist every origin for credentialed cross-origin requests. Any malicious website visited by an authenticated LightRAG user can silently make authenticated API requests, exfiltrating documents and knowledge graph data or performing destructive actions such as deleting the document store. This vulnerability is fixed in 1.5.4.

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

3 pypi packages depend on lightrag-hku (1 direct, 2 indirect)

Ecosystem-wide dependent count for version 1.5.4.

Executive ViewAI

Why It Matters

LightRAG server versions before 1.5.4 contain a critical vulnerability allowing attackers to hijack authenticated user sessions and steal or destroy sensitive knowledge-base data when victims visit malicious websites. Any employee using LightRAG is exposed without immediate patching, creating material risk to organizational data security and business continuity.

Recommended Action

Within 24 hours, audit all LightRAG deployments to identify instances running versions prior to 1.5.4 and assess data criticality. Within 7 days, deploy the vendor patch to version 1.5.4 across all systems, prioritizing production instances first, or if upgrading immediately is not feasible, restrict access via network controls and disable cross-domain requests at the application layer. Within 30 days, confirm patch deployment across all systems, review access logs for evidence of exploitation, and verify no instances remain pre-1.5.4.

Business Impact: Severe

Compensating Controls

Apply vendor patch to version 1.5.4.

Threat Intelligence Overview

EPSS Score

0.3%

Top 78% exploitable

Threat Intel

1 sources

Exploit

POC

Public exploit code exists

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment GHSA POC (1)

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC Yes

EPSS 0.3%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity + public POC available

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact

Very High

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +46

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.