Support Article

Caught Exception while validating SAML2 Authentication response



SAML authentication implemented in Pega 7.1.9 worked properly. However, an error occurred after upgrading to Pega 7.2.1.

Error Messages

Unable to process SAML2 Authentication response: Caught Exception while validating SAML2 Authentication response for SSO profile: Request ID doesn't match In response to field of SAML assertion,Possibility of a security breach.

Steps to Reproduce

  1. Use SSO for Pega 7.1.9.
  2. Upgrade to Pega 7.2.1.
  3. Log in by connecting to SSO.

Root Cause

User-installation error: Older version of pySAMLWebSSOAuthenticationActivity was used, which was overridden.


Perform the following local-change:
Copy out-of-the-box Pega 7.2.1 version of pySAMLWebSSOAuthenticationActivity and modify it.

Published September 2, 2016 - Updated September 13, 2016

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