# Statsig: Major incident: Elevated 401 unauthorized from statsigcdn

**Summary:** Statsig reported a major incident involving elevated 401 unauthorized responses from api.statsigcdn.com, affecting Config Delivery API components in Asia Southeast 1, Europe West 1, US East 1, US East 5 and US West 1. It started at 2026-04-17 00:25 UTC and was resolved at 2026-04-17 00:37 UTC, lasting 12 min; Statsig reported implementing a fix. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-04-17 00:25 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/7nxh29j7qcyq](https://stspg.io/7nxh29j7qcyq)
- [Company: Statsig](https://rewindex.com/company/statsig.md)
- Versions: before (none: first archived) → after incident\_version:208/z1x9lnzzt713@aa01dd5f557a
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Elevated 401 unauthorized from statsigcdn
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-04-17 00:25 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-04-17 00:37 UTC
```

**6. Added: Affected components**

```diff
+ Asia Southeast 1, Config Delivery API - Asia Southeast 1, Config Delivery API - Europe West 1, Config Delivery API - US East 1, Config Delivery API - US East 5, Config Delivery API - US West 1, Europe West 1, US East 1, US East 5, US West 1
```

**7. Added: Update** (investigating) · 2026-04-17 00:25 UTC

```diff
+ We are investigating an elevated number of 401 unauthorized returns from api.statsigcdn.com Mitigated: 04/16/2026 17:37:00 GMT-0700 (Pacific Daylight Time): We have implemented a fix and are in recovery
```

**8. Added: Update** (resolved) · 2026-04-17 00:37 UTC

```diff
+ Resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-04-17 00:25 UTC | Major incident: Elevated 401 unauthorized from statsigcdn (this change) | outage |

All Statsig changes: [timeline](https://rewindex.com/company/statsig/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._


---
Canonical: https://rewindex.com/change/ieb64a881370d84 · Markdown: https://rewindex.com/change/ieb64a881370d84.md · JSON: https://rewindex.com/api/v1/changes/ieb64a881370d84 · Generated 2026-10-18T02:31:44.982Z