CVE-2026-39987: Marimo Marimo
EPSS37.8%No. 953 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV1
Same product1
| Field | Value |
|---|---|
| Vendor | Marimo |
| Product | Marimo |
| Name | Marimo Remote Code Execution Vulnerability |
| Added to KEV | 2026-04-23 |
| US federal due date | 2026-05-07 |
| Ransomware use | Unknown |
| 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.
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Marimo Marimo vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-04-23.