Detections
Analytics
SCA: security update for marimo (GHSA-2679-6mx9-h9xc)
critical Tenable Self-Hosted Container Security Plugin ID 440087
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The
terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated
attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSocket
endpoints (e.g., /ws) that correctly call validate_auth() for authentication, the /terminal/ws endpoint
only checks the running mode and platform support before accepting connections, completely skipping
authentication verification. This vulnerability is fixed in 0.23.0. (CVE-2026-39987)
Solution
Update the marimo library and its related packages to version 0.23.0 or later.See Also
Plugin Details
Severity: Critical
ID: 440087
Version: Revision 1.12
Type: Local
Family: SCA Checks
Published: 4/9/2026
Updated: 6/3/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Critical
Score: 9.4
Percentile: 99.81
Vendor
Vendor Severity: Critical
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.3
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-39987
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.3
Threat Score: 9.3
Threat Vector: CVSS:4.0/E:A
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 4/8/2026
Vulnerability Publication Date: 4/8/2026
CISA Known Exploited Vulnerability Due Dates: 5/7/2026
Reference Information
CVE: CVE-2026-39987
cwe: CWE-306