ACTIVELY EXPLOITED
CVE-2026-39987: Marimo Remote Code Execution Vulnerability
| Vendor | Marimo |
|---|---|
| Product | Marimo |
| Actively exploited | Yes |
| Added to CISA KEV | 23 Apr 2026 |
| CISA federal deadline | 7 May 2026 |
| Weakness (CWE) | CWE-306 |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
Marimo contains an pre-authorization remote code execution vulnerability, allowing an unauthenticated attacked to shell access and execute arbitrary system commands.
SOURCES
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.