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CVE-2026-35665
Published:April 10, 2026
Updated:April 25, 2026
OpenClaw before 2026.3.24 contains an incomplete fix for CVE-2026-32011 where the Feishu webhook handler accepts request bodies with permissive limits of 1MB and 30-second timeout before signature verification. An unauthenticated attacker can exhaust server connection resources by sending concurrent slow HTTP POST requests to the Feishu webhook endpoint, blocking legitimate webhook deliveries.
Affected Packages
openclaw (NPM):
Affected version(s) >=0.0.1 <2026.3.2
Fix Suggestion:
Update to version 2026.3.2
openclaw (NPM):
Affected version(s) >=0.0.1 <2026.3.24
Fix Suggestion:
Update to version 2026.3.24
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Asymmetric Resource Consumption (Amplification)
Uncontrolled Resource Consumption
EPSS
Base Score:
0.08