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    CVE-2026-35665

    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.

    Published:Apr 10, 2026
    Last Modified:Apr 13, 2026
    EPS:Apr 10, 2026
    EPSS Score:0.00039
    CVSS Score:5.3

    Affected Products

    Vendor
    Openclaw
    Product
    Openclaw

    Exploits

    https://github.com/openclaw/openclaw/security/advisories/GHSA-w6m8-cqvj-pg5v

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High