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Marimo RCE Flaw CVE-2026-39987 Exploited Within 10 Hours of Disclosure

🗓️ 10 Apr 2026 07:37:00Reported by The Hacker NewsType 
thn
 thn🔗 thehackernews.com👁 12 Views

CVE-2026-39987 enables unauthenticated RCE in Marimo; /terminal/ws lacks auth; exploited within 10 hours; fixed in 0.23.0.

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24 Apr 2026 05:28Current
8.2High risk
Vulners AI Score8.2
CVSS 3.19.8
CVSS 49.3
EPSS0.97279
SSVC
Marimoremote code executionunauthenticatedterminal websocket
12