Outage report · Partial outage

WorkOS outage on Sep 9, 2026

Form POST failures for some Authkit customers

SeverityPartial outage

StartedSep 9, 2026, 21:00UTC

ResolvedSep 9, 2026, 23:02UTC

Duration2h 2m

What happened

WorkOS reported a partial outage starting Sep 9, 2026, 21:00 UTC, affecting AuthKit. It was marked resolved at Sep 9, 2026, 23:02 UTC.

The incident lasted 2h 2m from first report to resolution.
WorkOS had reported 9 other partial or major outages in the 90 days before it.
8 other vendors we track reported a significant incident within 12 hours of it.

Latest update from WorkOS

We're sorry for the disruption this incident caused for you and your users. Authentication is a critical path, and during this window we did not meet the reliability standard you expect from WorkOS. We take responsibility for the impact. Service was restored the same day, and we have already shipped several lasting fixes while continuing broader cleanup and detection work. # Postmortem: AuthKit custom domain sign-in failures **Date:** September 9, 2026 **Duration:** 21:09 – 22:30 UTC \(~80 minutes of customer impact\) **Status:** Resolved ## Summary On September 9, 2026, from approximately **21:09 to 22:30 UTC**, a small subset of customers using **AuthKit custom domains** experienced failures when submitting authentication forms \(sign-in, sign-up, MFA verification, device authorization, and email verification\). Users on affected domains saw **HTTP 500** errors on those form submissions, which blocked interactive login for the duration of the incident. This was a **partial out

Read WorkOS's official incident report ↗