# WorkOS: Major incident: AuthKit SSO failures

**Summary:** WorkOS reported a major incident involving SSO failures for AuthKit customers, starting at 2026-07-21 21:21 UTC and resolved at 2026-07-21 21:54 UTC, lasting 32 min. WorkOS said it identified and fixed the issue and AuthKit SSO fully recovered; no cause was stated. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-07-21 21:21 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/7s1f715xbsc6](https://stspg.io/7s1f715xbsc6)
- [Company: WorkOS](https://rewindex.com/company/workos.md)
- Versions: before (none: first archived) → after incident\_version:324/c8s7sc72v2y7@38cb4f7cdc4a
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ AuthKit SSO failures
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-21 21:21 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-21 21:54 UTC
```

**6. Added: Update** (investigating) · 2026-07-21 21:21 UTC

```diff
+ We are investigating SSO failures for AuthKit customers.
```

**7. Added: Update** (resolved) · 2026-07-21 21:54 UTC

```diff
+ We identified and fixed the issue. AuthKit SSO has fully recovered.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-21 21:21 UTC | Major incident: AuthKit SSO failures (this change) | outage |

All WorkOS changes: [timeline](https://rewindex.com/company/workos/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i34c4b21e89677c · Markdown: https://rewindex.com/change/i34c4b21e89677c.md · JSON: https://rewindex.com/api/v1/changes/i34c4b21e89677c · Generated 2026-10-18T03:33:50.197Z