HTTP: Marimo Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

This signature detects attempts to exploit a known vulnerability against Marimo. A successful attack can lead to arbitrary code execution.

References

CVE: CVE-2026-39987

Short Name
HTTP:CTS:MARIMO-RMT-CDE
Severity
Critical
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
Authentication Bypass CVE-2026-39987 Code Execution Marimo Pre-Auth Remote Terminal WebSocket via
Release Date
05/04/2026
Supported Platforms

srx-branch-19.3

vsrx3bsd-19.2

srx-19.4

vsrx3bsd-19.4

srx-branch-19.4

vsrx-19.4

srxevo-25.4

vsrx-26.2

srx-26.2

srx-branch-26.2

vsrx3bsd-26.2

vsrx-19.2

srx-19.3

Sigpack Version
3905
False Positive
Unknown

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