CVE-2026-3432

On SimStudio version below to 0.5.74, the `/api/auth/oauth/token` endpoint contains a code path that bypasses all authorization checks when provided with `credentialAccountUserId` and `providerId` parameters. An unauthenticated attacker can retrieve OAuth access tokens for any user by supplying their user ID and a provider name, effectively stealing credentials to third-party services.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.tenable.com/security/research/tra-2026-13	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sim:sim:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-02 13:16

Updated : 2026-06-17 10:43

NVD link : CVE-2026-3432

Mitre link : CVE-2026-3432

CVE.ORG link : CVE-2026-3432

JSON object : View

Products Affected

sim

sim

CWE

CWE-862

Missing Authorization

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