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29 Jun 2026

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highpatchedexploited 29 Jun 2026 SimpleHelp Authentication Bypass Vulnerability SimpleHelp SimpleHelp SimpleHelp contains an authentication bypass vulnerability in the OIDC authentication flow. When OIDC authentication is configured, identity tokens submitted during login are accepted without verifying their cryptographic signature. In a vulnerable configuration, a remote, unauthenticated attacker can submit a forged token containing arbitrary identity claims to obtain a fully authenticated technician session. In some configurations, this may also allow bypass of multi-factor authentication. Added to CISA KEV on 2026-06-29 (federal deadline 2026-07-02). CVE-2026-485582 sources