# WorkOS: Elevated Authkit SSO Errors

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-07-31 16:12 UTC · Resolved: 2026-07-31 18:06 UTC · Duration: 1.9 h
- Updates: 7 · Affected components: AuthKit, Core Services - AuthKit, Core Services - SSO, SSO
- [Vendor status page: https://stspg.io/8yzkp8k0c921](https://stspg.io/8yzkp8k0c921)
- [Company: WorkOS](https://rewindex.com/company/workos.md)

## Summary

WorkOS reported a major AuthKit SSO incident causing elevated errors and sign-on redirect loops for a small subset of customers; standalone SSO was unaffected. It started at 2026-07-31 16:12 UTC and resolved at 2026-07-31 18:06 UTC, lasting 1 h 53 min. A fix was deployed at 17:10 UTC. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2026-07-31 16:01 UTC: We're investigating an increase in Single Sign-On errors. We will share an update as soon as possible.
- **investigating** 2026-07-31 16:12 UTC: It appears some users may be experiencing a redirect loop during sign-on, we are narrowing in on a cause
- **investigating** 2026-07-31 16:16 UTC: We have identifed an issue causing a small subset of Authkit SSO customers to experience errors during sign-on. A fix is being prepared.
- **investigating** 2026-07-31 16:34 UTC: The issue affects a small set of customers using Authkit SSO. The standalone SSO API remains unaffected, we have corrected that here on the status page
- **investigating** 2026-07-31 17:00 UTC: We have identified the issue and are deploying a fix. AuthKit SSO sign-on remains partially degraded for a small subset of customers; standalone SSO continues to be unaffected. We'll share another update once the fix has fully rolled out.
- **monitoring** 2026-07-31 17:10 UTC: The fix has deployed, we are monitoring systems to verify the impact is fully mitigated
- **resolved** 2026-07-31 18:06 UTC: The issue has been resolved.

## Rewindex changes for this incident

- 2026-07-31 16:12 UTC: [Major incident: Elevated Authkit SSO Errors](https://rewindex.com/change/iea6bea5a9a30d2.md)


---
Canonical: https://rewindex.com/company/workos/incidents/y8tkyl8p6s4y · Markdown: https://rewindex.com/company/workos/incidents/y8tkyl8p6s4y.md · JSON: https://rewindex.com/api/v1/companies/workos/incidents/y8tkyl8p6s4y · Generated 2026-10-18T10:42:04.321Z