CVE-2026-39987 is a pre-authentication remote code execution vulnerability in Marimo notebooks before version 0.23.0. It was added to CISA's Known Exploited Vulnerabilities catalog in April 2026 after being exploited within hours of disclosure.
CVE-2026-39987 is a pre-authentication remote code execution vulnerability in Marimo notebooks before version 0.23.0. It was added to CISA's Known Exploited Vulnerabilities catalog in April 2026 after being exploited within hours of disclosure.