CVE-2026-3431— Sim Studio AI - MongoDB SSRF and Arbitrary Document Deletion
Quick assessment
Affected
SimStudioAI sim
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Sim Studio是Sim Studio开源的一个AI代理工作流构建器。 Sim Studio 0.5.74之前版本存在安全漏洞，该漏洞源于MongoDB工具端点接受任意连接参数，可能导致对任意MongoDB实例进行未授权操作。
Possible ATT&CK Techniques 3 AI
T1046 · Network Service Discovery T1078 · Valid Accounts T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-3431
Vulnerability Information
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Vulnerability Title
Sim Studio AI - MongoDB SSRF and Arbitrary Document Deletion
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Sim Studio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sim Studio是Sim Studio开源的一个AI代理工作流构建器。 Sim Studio 0.5.74之前版本存在安全漏洞，该漏洞源于MongoDB工具端点接受任意连接参数，可能导致对任意MongoDB实例进行未授权操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SimStudioAI | sim | 0 ~ 0.5.74 | - |
|
II. Public POCs for CVE-2026-3431
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-3431 (1)
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V. Comments for CVE-2026-3431
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