Outage in Harness
SSO login failures for the published Harness Okta application
Resolved MinorIncident Report
Summary AI Generated
**SSO Login Failures – Harness Okta Application** A recent update to the published Harness Okta application caused SP-initiated login attempts to fail with HTTP 400 errors when the configured SSO URL was absent from the Additional ACS URLs field, impacting users unable to access Harness via that login flow for approximately 52 hours. General SAML 2.0 configurations in Okta were unaffected, and workarounds included switching to IDP-initiated login or manually adding the Harness SSO URL to Additional ACS URLs. The incident was resolved on October 1, 2026.
We are currently investigating this issue.
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Latest Updates ( sorted recent to last )
RESOLVED
3 days ago - at 10/02/2026 12:33AM
This incident has been resolved.
IDENTIFIED
5 days ago - at 09/29/2026 08:57PM
We identified an issue that applies only to SP-initiated login through the published Harness Okta application. After a recent update to that application, those login attempts returned an HTTP 400 error when the configured SSO URL was missing from Additional ACS URLs. General SAML 2.0 configurations in Okta are not affected.
Immediate Solutions:
Use IDP-initiated login. Start the login from the Harness application tile in Okta.
Or
Add your Harness SSO URL to Additional ACS URLs in the published Harness Okta application.
IDENTIFIED
5 days ago - at 09/29/2026 08:50PM
We identified an issue that applies only to SP-initiated login through the published Harness Okta application. After a recent update to that application, those login attempts returned an HTTP 400 error when the configured SSO URL was missing from Additional ACS URLs. General SAML 2.0 configurations in Okta are not affected.
Immediate Solutions:
Use IDP-initiated login. Start the login from the Harness application tile in Okta.
Or
Add your Harness SSO URL to Additional ACS URLs in the published Harness Okta application.
IDENTIFIED
5 days ago - at 09/29/2026 08:31PM
The issue has been identified and a fix is being implemented.
INVESTIGATING
5 days ago - at 09/29/2026 08:31PM
We are currently investigating this issue.
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