OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing
Summary
OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- advisory vulncheck.com