CVE-2026-3432CRITICAL 9.1EPSS p21.5%

CVE-2026-3432CVE-2026-3432

Description

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.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS0.30% probability of exploitation · percentile 21.5% · 2026-06-19T12:03:05Z
Published2026-03-02
Last modified2026-03-06

Underlying weaknesses· 1

CWE-862

References

  1. https://www.tenable.com/security/research/tra-2026-13

1

TypeTargetConfidenceTier
WeaknessMissing Authorizationcwe-8620%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.