CVE-2026-35665
OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-405 |
| Vendor | openclaw |
| Product | openclaw |
| Published | Apr 10, 2026 |
| Last Updated | Apr 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
OpenClaw / OpenClaw
0 < 2026.3.24