CVE-2026-3432
Critical · 9.1CVSS
9.1
EPSS
0.5%
Published
Mar 2, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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