Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 24.9%
CVSS Severity
CVSS v3 Score 9.1
Products affected by CVE-2026-3432