VulnerabilityALERT Critical

CVE-2026-39987: Marimo Remote Code Execution Vulnerability

Marimo contains an pre-authorization remote code execution vulnerability, allowing an unauthenticated attacked to shell access and execute arbitrary system commands.

Impact

CISA lists CVE-2026-39987 as known exploited in the wild for Marimo Marimo. Ransomware campaign use: Unknown. Federal remediation due date: 2026-05-07.

Recommended Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Published: 4/23/2026, 12:00:00 AMSource: CISA Known Exploited Vulnerabilities CatalogTags: CVE-2026-39987, Marimo, Marimo, CISA KEV, CWE-306