# Jupyter (Anaconda): Major incident: Cloudflare outage affecting Anaconda services

**Summary:** A major Cloudflare outage caused increased error rates, affecting SSO authentication to all Anaconda services and repo.anaconda.cloud. The incident started at 2025-06-12 18:40 UTC and was resolved at 2025-06-12 20:57 UTC, lasting 2 h 16 min; services were reported as beginning to recover at 06-12 20:22 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-06-12 18:40 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/vg3sflg6pqbb](https://stspg.io/vg3sflg6pqbb)
- [Company: Jupyter (Anaconda)](https://rewindex.com/company/jupyter-anaconda.md)
- Versions: before (none: first archived) → after incident\_version:150/j6f67yd3ml3m@dca1281f261f
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Cloudflare outage affecting Anaconda services
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-06-12 18:40 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-06-12 20:57 UTC
```

**6. Added: Affected components**

```diff
+ Anaconda.cloud - Commercial Package Repository - repo.anaconda.cloud - CVE Data, Anaconda.cloud - Commercial Package Repository - repo.anaconda.cloud - Packages, Anaconda.cloud - Commercial Package Repository Service - repo.anaconda.cloud, anaconda.com - anaconda.com, CVE Data - api.anaconda.cloud, Premium Package Repository - repo.anaconda.com/repo
```

**7. Added: Update** (investigating) · 2025-06-12 18:40 UTC

```diff
+ A Cloudflare outage is causing increased error rates for some Anaconda services. We're monitoring for updates. https://www.cloudflarestatus.com/incidents/25r9t0vz99rp
```

**8. Added: Update** (investigating) · 2025-06-12 18:56 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (monitoring) · 2025-06-12 20:22 UTC

```diff
+ We have identified that the outage affected SSO authentication to all services, as well as repo.anaconda.cloud. The services are beginning to recover now. We will continue to monitor.
```

**10. Added: Update** (monitoring) · 2025-06-12 20:32 UTC

```diff
+ We are continuing to monitor for any further issues.
```

**11. Added: Update** (resolved) · 2025-06-12 20:57 UTC

```diff
+ This incident has been resolved. We apologize to all who are affected by the disruption.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-06-12 18:40 UTC | Major incident: Cloudflare outage affecting Anaconda services (this change) | outage |

All Jupyter (Anaconda) changes: [timeline](https://rewindex.com/company/jupyter-anaconda/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/i94547669eb2d13 · Markdown: https://rewindex.com/change/i94547669eb2d13.md · JSON: https://rewindex.com/api/v1/changes/i94547669eb2d13 · Generated 2026-10-18T01:40:09.609Z