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.

Marimo CVE-2026-39987 exploited within 10 hours of disclosure, enabling unauthenticated RCE and credential theft, emphasizing urgent patching needs.

Hackers are exploiting a critical vulnerability in Marimo reactive Python notebook to deploy a new variant of NKAbuse malware ...

Over 1,000 exposed ComfyUI instances exploited via unauthenticated code execution, enabling Monero mining and botnet expansion.

A critical flaw in Python tool Marimo was exploited within 10 hours of disclosure, researchers report, highlighting how quickly attackers are now turning vulnerability advisories into real-world ...

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.

Official support for free-threaded Python, and free-threaded improvements Python’s free-threaded build promises true parallelism for threads in Python programs by removing the Global Interpreter Lock ...