Platform: Global - SAML/Federation Authentication Failures

Incident Overview

On Friday, April 3rd, 2026, a subset of SAML/Federation users were unable to authenticate to their Delinea Platform tenants. The issue was first reported at approximately 5:01 PM ET and was fully resolved by 8:38 PM ET following a rollback of a recent platform update.

Tenants using the default SAML issuer configuration were not impacted. Customers with local (non-SAML) accounts retained access throughout the incident via breakglass or local admin credentials.

Root Cause

A platform update deployed at approximately 4:20 PM ET introduced a code change that inadvertently caused custom SAML authentication configurations to not be correctly applied for affected tenants. This resulted in authentication failures for tenants that relied on a custom SAML issuer, while tenants using default settings were unaffected.

A contributing factor was insufficient test coverage for this specific authentication scenario prior to the global rollout of the update.

Preventive Actions

• A code fix is being implemented to ensure custom SAML authentication configurations are correctly applied in all cases going forward.
• Automated test coverage is being expanded to include SAML authentication scenarios with custom configurations to prevent similar issues in future releases.