UNKNOWNKNOWN EXPLOITED
CVE-2026-48558
SimpleHelp Authentication Bypass Vulnerability
Summary
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.
References
Includes data from the CISA Known Exploited Vulnerabilities catalog.
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