Vulnerability · Published Mar 2, 2026 · Assigned by tenable
CVE-2026-3431Sim Studio AI - MongoDB SSRF and Arbitrary Document Deletion
Critical 9.8
In plain English
A critical-severity missing authorization in sim from SimStudioAI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 65.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SimStudioAI | sim | 0 – before 0.5.74 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H