A critical pre-authentication remote code execution (RCE) vulnerability in Marimo is now under active exploitation, leveraged ...
Marimo is an integrated development environment for Python that combines code, results, visualizations, and documentation.
A threat actor started exploiting CVE-2026-39987, an unauthenticated RCE vulnerability in Marimo, nine hours after public ...
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Marimo CVE-2026-39987 exploited within 10 hours of disclosure, enabling unauthenticated RCE and credential theft, emphasizing urgent patching needs.
The CVSS‑9.3 vulnerability allows unauthenticated remote code execution on exposed Marimo servers and was exploited in the wild shortly after disclosure, Sysdig says.