CVE-2026-41343mediumCWE-799

CVE-2026-41343: medium-severity vulnerability in OpenClaw

OpenClaw < 2026.3.31 - Denial of Service via LINE Webhook Handler Pre-Auth Concurrency

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.5%
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
OpenClaw · OpenClaw
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