9 Realms Cybersecurity
AdvisoriesCVE-2026-39987

Marimo Remote Code Execution Vulnerability

MarimoMarimoAdded April 23, 2026

CISA Known Exploited Vulnerabilities Data

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.

CISA Due Date

May 7, 2026 (federal agency requirement)

Known Ransomware Campaign Use

Unknown

Notes

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

External References

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Data sourced from the CISA Known Exploited Vulnerabilities catalog. CISA does not endorse any commercial product or service.