CriticalCVECISA — Known Exploited Vulnerabilities· 23 Apr 2026

CVE-2026-39987 — Marimo Remote Code Execution Vulnerability

Severity: Critical · Kind: Vulnerability

Plain-English summary on the way

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From the source

Marimo Marimo. 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.

Vulnerability facts

CVE: CVE-2026-39987
On CISA KEV since: 2026-04-23
Ransomware use: Unknown

Read the original advisory →← All threat intel

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.