Resource exhaustion in OpenClaw - CVE-2026-41343
Published: April 30, 2026
Vulnerability identifier: #VU128604
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2026-41343
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in the LINE webhook handler when handling requests before signature verification. A remote attacker can send multiple requests to cause a denial of service.
The effect is limited to bounded transient availability loss on the public LINE webhook path.
How to mitigate CVE-2026-41343
Install security update from vendor's website.