← CVE Intelligence

CVE-2026-48558

SimpleHelp Authentication Bypass via Missing OIDC JWT Signature Verification PUBLISHED

Description (CNA)

SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain 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. No user interaction is required.

Affected (CNA)

Vendor / productVersions
SimpleHelp / SimpleHelpaffected 5.5.0 before 5.5.16; affected 6.0 before 6.0 RC2

CWE

CWE-347

References

ADP enrichment

CISA-ADP

No English description supplied.