Form POST failures for some Authkit customers

Summary

Form POST failures for some Authkit customers

We have identified the source of the problem. A configuration change that applied to roughly 2% of organizations using a custom domain for hosted Authkit resulted in form submission errors. The configuration has been reverted and service restored.

• Started

  Sep 9, 2026 · 5:00 PM

• Resolved

  Sep 9, 2026 · 7:02 PM

• Duration

  2h 1m

• Severity

  Major

• ◐

  Investigating

  Sep 9 · 7:00 PM WorkOS

  We are seeing an elevated error rate for some customers for POST requests. This appears to be limited to a small subset of organizations using custom domains for hosted Authkit

• ✓

  Resolved

  Sep 9 · 7:02 PM WorkOS

  We have identified the source of the problem. A configuration change that applied to roughly 2% of organizations using a custom domain for hosted Authkit resulted in form submission errors. The configuration has been reverted and service restored.