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CVE-2026-35665

CVE-2026-35665 · OpenClaw < 2026.3.24 - Denial of Service via Feishu Webhook Pre-Auth Body Parsing

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.9 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • openclaw

    Versions
    • ≥ 0, < 2026.3.24: Affected (semver)
    • 2026.3.24: Not affected (semver)

    Update to 2026.3.24

  • openclaw npm

    Affected ranges
    • SEMVER: < 2026.3.24

    Update to 2026.3.24

Original sources

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