CVE-2026-48558
SimpleHelp Authentication Bypass Vulnerability
Description
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.
How to fix CVE-2026-48558
No package mapping is available — consult the references below for vendor-specific guidance.
Is CVE-2026-48558 being exploited?
Yes — CVE-2026-48558 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (0)
No package mapping in OSV.