CVE-2026-3431CRITICAL 9.8EPSS p26.9%

CVE-2026-3431CVE-2026-3431

Description

On SimStudio version below to 0.5.74, the MongoDB tool endpoints accept arbitrary connection parameters from the caller without authentication or host restrictions. An attacker can leverage these endpoints to connect to any reachable MongoDB instance and perform unauthorized operations including reading, modifying, and deleting data.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.35% probability of exploitation · percentile 26.9% · 2026-06-19T12:03:05Z
Published2026-03-02
Last modified2026-03-06

Underlying weaknesses· 1

CWE-862

References

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

1

TypeTargetConfidenceTier
WeaknessMissing Authorizationcwe-8620%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.