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    2 vulnerabilities by ThreeMammals

    CVE-2026-58172 (GCVE-0-2026-58172)

    Vulnerability from nvd – Published: 2026-06-30 15:54 – Updated: 2026-07-02 13:40 X_Open Source
    VLAI
    Title
    Ocelot - IP Allow/Block List Bypass for WebSocket Upgrade Requests
    Summary
    Ocelot through 24.1.0, fixed in commit f156fd4, contains a security control bypass vulnerability that allows denied clients to circumvent IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen in OcelotPipelineExtensions.cs omits SecurityMiddleware, causing requests from blocked IP addresses to be proxied to downstream services without enforcement of the configured allow/block list.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
    Assigner
    References
    Impacted products
    Vendor Product Version
    ThreeMammals Ocelot Affected: 0 , ≤ 24.1.0 (semver)
    Unaffected: f156fd4017ca25025fffdad8ec56c1d657dfb402 (git)
    		Create a notification for this product.
    Date Public
    2026-06-27 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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    CVE-2026-58172 (GCVE-0-2026-58172)

    Vulnerability from cvelistv5 – Published: 2026-06-30 15:54 – Updated: 2026-07-02 13:40 X_Open Source
    VLAI
    Title
    Ocelot - IP Allow/Block List Bypass for WebSocket Upgrade Requests
    Summary
    Ocelot through 24.1.0, fixed in commit f156fd4, contains a security control bypass vulnerability that allows denied clients to circumvent IP-based access restrictions by sending WebSocket upgrade requests. The WebSocket upgrade pipeline branch configured via MapWhen in OcelotPipelineExtensions.cs omits SecurityMiddleware, causing requests from blocked IP addresses to be proxied to downstream services without enforcement of the configured allow/block list.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
    Assigner
    References
    Impacted products
    Vendor Product Version
    ThreeMammals Ocelot Affected: 0 , ≤ 24.1.0 (semver)
    Unaffected: f156fd4017ca25025fffdad8ec56c1d657dfb402 (git)
    		Create a notification for this product.
    Date Public
    2026-06-27 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

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