CVE-2026-39987 - Marimo Remote Code Execution Vulnerability

Vulnerability Name

Marimo Remote Code Execution Vulnerability

Description

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

Known To Be Used in Ransomware Campaigns?

Unknown

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.

Additional 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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Attackers Use LLM Agent for Post-Exploitation After Marimo CVE-2026-39987 ExploitMay 29, 2026