critical · CVSS v3 9.8 · CVSS v4 9.3

CVE-2026-123550

OpenAM before 16.1.4 contains an authentication bypass vulnerability in its SAML v2.0 service provider that accepts unsi…

Description

OpenAM before 16.1.4 contains an authentication bypass vulnerability in its SAML v2.0 service provider that accepts unsigned assertions on the ECP (PAOS) and HTTP-Artifact bindings when WantAssertionsSigned is false. Unauthenticated remote attackers can submit forged assertions to obtain sessions as any mapped user, including administrators, and hijack single sign-on to dependent applications.

Scores

Severity
critical
CVSS v2
10
CVSS v3
9.8
CVSS v4
9.3
EPSS
—

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