A critical flaw in Marimo, tracked as CVE-2026-39987 (CVSS score of 9.3) was exploited just 10 hours after disclosure (On April 8, 2026). Sysdig Threat Research Team observed exploitation of the Marimo flaw within 9 hours and 41 minutes of disclosure, with credential theft completed in under 3 minutes, despite no public exploit code. Marimo is an open-source Python notebook tool used for data scie...