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CVE-2026-3431 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: March 2, 2026

SimStudio - Broken Access Control

Published: March 2, 2026Updated: March 2, 2026Remote Exploitable

Overview

SimStudio < 0.5.74 contains a broken access control vulnerability caused by unauthenticated MongoDB tool endpoints accepting arbitrary connection parameters, letting attackers perform unauthorized operations on reachable MongoDB instances, exploit requires network access.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Attackers can read, modify, and delete data on any reachable MongoDB instance without authentication.

Mitigation

Update to version 0.5.74 or later.

References

https://www.tenable.com/security/research/tra-2026-12

Related Resources

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Details

CVE ID: CVE-2026-3431
Severity: Critical
CVSS Score: 9.8
Type: broken_access_control
Status: new

CWE

CWE-862

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H