CVE-2026-41343

OpenClaw before 2026.3.31 lacks a shared pre-auth concurrency budget on the public LINE webhook path, allowing attackers to cause transient availability loss. Remote attackers can flood the webhook endpoint with concurrent requests before signature verification to exhaust resources and degrade service availability.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/commit/57c47d8c7fbf5a2e70cc4dec2380977968903cad	Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-qcc3-jqwp-5vh2	Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-line-webhook-handler-pre-auth-concurrency	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

History

28 Apr 2026, 18:56

Type	Values Removed	Values Added
CPE		cpe:2.3:a:openclaw:openclaw::::::node.js::*
First Time		Openclaw openclaw Openclaw
References	~~() https://github.com/openclaw/openclaw/commit/57c47d8c7fbf5a2e70cc4dec2380977968903cad -~~	() https://github.com/openclaw/openclaw/commit/57c47d8c7fbf5a2e70cc4dec2380977968903cad - Patch
References	~~() https://github.com/openclaw/openclaw/security/advisories/GHSA-qcc3-jqwp-5vh2 -~~	() https://github.com/openclaw/openclaw/security/advisories/GHSA-qcc3-jqwp-5vh2 - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-line-webhook-handler-pre-auth-concurrency -~~	() https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-line-webhook-handler-pre-auth-concurrency - Third Party Advisory

23 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-23 22:16

Updated : 2026-04-28 18:56

NVD link : CVE-2026-41343

Mitre link : CVE-2026-41343

CVE.ORG link : CVE-2026-41343

JSON object : View

Products Affected

openclaw

openclaw

CWE

CWE-799

Improper Control of Interaction Frequency

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