Resource exhaustion in OpenClaw - #VU125204
Published: April 8, 2026
Vulnerability identifier: #VU125204
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in the Feishu webhook handler when processing unauthenticated request bodies before signature validation. A remote attacker can send a specially crafted request body to cause a denial of service.
Affected software
OpenClaw
Remediation
Install security update from vendor's website.