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ActiveIQ Unified Manager SAML Authentication fails after upgrading to 9.18P1 or later

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Applies to

ActiveIQ Unified Manager (AIQUM) 9.18P1 and later

Issue

After upgrading from AIQUM 9.18 or earlier to AIQUM 9.18P1 or later, SAML authentication fails with the message that the assertion is not signed.

ocumserver.log

2026-07-07 10:12:26,995 ERROR [oncommand] [default task-12] [c.n.d.w.s.mfa.SamlSecurityConfig] SAML response validation error: code=malformed_response_data description=No assertions found in response.
2026-07-07 10:12:26,998 ERROR [oncommand] [default task-12] [c.n.d.w.s.mfa.SamlSecurityConfig] SAML login failed: Saml2AuthenticationException{error=[invalid_signature] Did not decrypt response [uuid] since it is not signed}
2026-07-07 10:12:58,829 ERROR [oncommand] [default task-12] [c.n.d.w.s.mfa.SamlSecurityConfig] SAML login failed: Saml2AuthenticationException{error=[relying_party_registration_not_found] No relying party registration found}

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