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    CVE-2026-3690

    OpenClaw Canvas Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the the authentication function for canvas endpoints. The issue results from improper implementation of authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-29311.

    Published:Apr 11, 2026
    Last Modified:Apr 27, 2026
    EPS:Apr 11, 2026
    EPSS Score:0.00161
    CVSS Score:7.4

    Affected Products

    Vendor
    Openclaw
    Product
    Openclaw

    Exploits

    https://github.com/openclaw/openclaw/security/advisories/GHSA-vvjh-f6p9-5vcfhttps://www.zerodayinitiative.com/advisories/ZDI-26-228/

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-4 Using Alternative IP Address Encodings

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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