Knowledge Buddy authentication suddenly failing on PegaLabs Infinity 26 – OAuth2 and Basic Auth

Hi,

I’m experiencing a persistent authentication issue with Knowledge Buddy on a PegaLabs Infinity 26 environment.

Knowledge Buddy worked correctly after installation and continued working for some time. Then, without any intentional configuration change, authentication started failing. The issue persists even after updating to the latest available Knowledge Buddy version.

I tested both OAuth2 and Basic Authentication, and both fail. One common element between the two configurations is the BuddyUser Operator.

During troubleshooting, I discovered that BuddyUser had:

  • Disable Operator enabled
  • Force password change on next login enabled

I re-enabled the Operator, but the issue persisted.

For the Basic Authentication test, I also:

  • Disabled Force password change on next login
  • Set a new password for BuddyUser
  • Configured the same password in KnowledgeBuddy_Basic_EndUser
  • Verified that BuddyUser uses the KnowledgeBuddy:EndUsers Access Group

However, Basic Authentication still returns HTTP 401 with:

invalid_authorization_header – Invalid Authentication Data

Has anyone encountered this behavior on PegaLabs / Knowledge Buddy 26.1? Could something else related to BuddyUser explain why authentication remains invalid after re-enabling the Operator and resetting its password?

SSO and short id operator via the LDAP url seems to be enabled in the moment

there is a new version of KB available now for you lab, please try 26.1.1-261

irizconsulting05

Application Knowledge Buddy (KB)
Installed Version 26.1.0-956
Available Versions 26.1.1-261