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    BragJack: Edge Copilot rapid think/act race condition prompt injection

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    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Arnold Chan@slaz
    •updated 22 days ago•0•0•1

    Detects rapid AI agent state transitions (from 'think' to 'act') within Microsoft Edge processes, specifically identifying potential exploitation of the CVE-2026-55945 race condition vulnerability, which could be used to force the unauthorized execution of an injected prompt.

    Microsoft Sentinel (KQL)

    Tags

    T1203 - Exploitation for Client ExecutionTA0002 - ExecutionProcess EventExploit AttemptWindowsWindows Defender AtpCVE-2026-55945kql

    Found in

    • BragJack: Browser Extension Attack Hijacks AI AssistantsLast updated 22 days ago
    • BragJack: Browser Extension Attack Hijacks AI AssistantsLast updated 22 days ago
    • BragJack: Browser Extension Attack Hijacks AI AssistantsLast updated 22 days ago
    • BragJack: Browser Extension Attack Hijacks AI AssistantsLast updated 22 days ago
    • BragJack: Browser Extension Attack Hijacks AI AssistantsLast updated 22 days ago

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