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9 April 2026

Vulnerabilities first published on this day (UTC), newest first.

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  • Critical 9.3
    CVE-2026-39987 Exploited Public exploit Scanner template EPSS 100%

    marimo Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

    marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary…

    marimo-team marimo marimo PyPI
    KEV Apr 23, 2026