MongoDB
CVE-2026-3431
CRITICAL
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessSend crafted HTTP request to MongoDB tool endpoint
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ExploitSupply arbitrary MongoDB connection parameters
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ExecutionConnect to target MongoDB instance
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ImpactExecute unauthorized database operations
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | SimStudio version below 0.5.74 with MongoDB tool endpoints exposed. No authentication required. Attacker must have network access to both SimStudio and target MongoDB instance. Default deployment accepts arbitrary connection parameters without validation. |
| Impact | CVSS 9.8 — arbitrary MongoDB operations could extract, modify, or delete simulation data. |
| Exploit ScenarioDerived | An attacker sends requests to the unprotected MongoDB endpoints with connection parameters pointing to the SimStudio database, extracting all simulation data. |
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Alert meAnalysisAIv1 – Mar 12, 2026
SimStudio below 0.5.74 has a missing authorization on MongoDB tool endpoints that allows attackers to execute arbitrary MongoDB operations.
Earlier versions of this analysis (1)
Missing authorization on SimStudio MongoDB endpoints enables arbitrary database operations.
RemediationAI
Update SimStudio. Implement authorization on all database endpoints.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
SimStudio < 0.5.74 has a CWE-862 missing authorization vulnerability where MongoDB tool endpoints accept arbitrary connection parameters, allowing attackers to connect to any MongoDB instance.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionCVE.org
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.
Executive ViewAI
A critical vulnerability in SimStudio versions below 0.5.74 allows unauthenticated attackers to manipulate MongoDB database connections, potentially enabling unauthorized data access, theft, or destruction across systems using this software. Organizations running affected versions face immediate risk of data breach and operational disruption without remediation.
Implement network segmentation to restrict access to MongoDB tool endpoints to authorized internal networks only; deploy Web Application Firewall (WAF) rules to block requests containing suspicious connection parameters or injection patterns; disable MongoDB tool functionality entirely if not operationally critical; enable and monitor MongoDB connection logs and audit trails for unauthorized access attempts; implement API authentication and rate limiting on affected endpoints; monitor for indicators of compromise related to database access anomalies.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Affected Products (CPE)CVE.org
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GitHub PoC
Exploit-DB