CVE-2026-41343 Details
Description
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.
A denial-of-service vulnerability has been identified in OpenClaw versions prior to 2026.3.31. The issue arises in the public LINE webhook handler, which lacks a shared pre-authentication concurrency budget. This vulnerability allows remote attackers to flood the webhook endpoint with concurrent requests before signature verification, leading to resource exhaustion and degraded service availability.
Users can upgrade to OpenClaw version 2026.3.31 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 24, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-799 | Improper Control of Interaction Frequency | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openclaw openclaw | < 2026.3.31 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 28, 2026 | Initial Analysis | [email protected] |
| Apr 23, 2026 | New CVE Received | [email protected] |