CVE-2026-123550
Published:November 08, 2026
Updated:November 09, 2026
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.
Affected Packages
https://github.com/OpenIdentityPlatform/OpenAM.git (GITHUB):
Affected version(s) >=9.5 <16.1.4 || >=10.0.0 <16.1.4 || =11.0.0 <16.1.4 || >=12.0.0 <16.1.4 || >=13.0.0-RC1 <16.1.4 || >=14.0.0-M1 <16.1.4 || >=15.0.0 <16.1.4 || >=16.0.0-RC1 <16.1.4Fix Suggestion:
Update to version 16.1.4org.openidentityplatform.openam:openam-federation-library (JAVA):
Affected version(s) >=16.0.1 <16.1.4 || >=15.0.0 <16.1.4 || >=14.5.2 <16.1.4Fix Suggestion:
Update to version 16.1.4Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Authentication Bypass by Spoofing
EPSS
Base Score:
0.56