CVE-2026-39987

Marimo Remote Code Execution Vulnerability

Marimo — Marimo

Added to KEV catalog: 23 April 2026
Federal remediation due date: 7 May 2026
Weakness classification (CWE): CWE-306

CISA Description

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

Required 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.

Notes

https://github.com/marimo-team/marimo/security/advisories/GHSA-2679-6mx9-h9xc ; https://nvd.nist.gov/vuln/detail/CVE-2026-39987

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