# Semgrep: Major incident: Investigating issues with pull request checks and repository scans

**Summary:** Semgrep reported a major outage affecting repository scans and GitHub pull request checks: some customers saw scans not starting or checks not appearing. It started at 2026-03-06 12:04 UTC and was resolved at 2026-03-06 16:18 UTC, lasting 4 h 14 min. A fix was rolled out, and scans returned to normal operation. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-03-06 12:04 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/xnql85mk12nq](https://stspg.io/xnql85mk12nq)
- [Company: Semgrep](https://rewindex.com/company/semgrep.md)
- Versions: before (none: first archived) → after incident\_version:316/7gfq4nn019kc@78b83b0cc815
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Investigating issues with pull request checks and repository scans
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-03-06 12:04 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-03-06 16:18 UTC
```

**6. Added: Affected components**

```diff
+ GitHub - GitHub Pull Requests, GitHub Pull Requests, Managed Scans, Scans and CI/CD, semgrep.dev - Managed Scans, semgrep.dev - Scans and CI/CD
```

**7. Added: Update** (investigating) · 2026-03-06 12:04 UTC

```diff
+ We are investigating reports of issues affecting repository scans and pull request checks. Some customers may see scans not starting or checks not appearing on pull requests. We are investigating and will share updates as more information becomes available.
```

**8. Added: Update** (investigating) · 2026-03-06 12:24 UTC

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

**9. Added: Update** (monitoring) · 2026-03-06 15:47 UTC

```diff
+ We've identified the root cause of the issue that was affecting repository scans and pull request checks, and a fix has now been rolled out. We are now monitoring the results to make sure everything is running smoothly.
```

**10. Added: Update** (resolved) · 2026-03-06 16:18 UTC

```diff
+ This issue has been resolved, and scans have returned to normal operation.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-03-06 12:04 UTC | Major incident: Investigating issues with pull request checks and repository scans (this change) | outage |

All Semgrep changes: [timeline](https://rewindex.com/company/semgrep/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/i4decac4bf27e84 · Markdown: https://rewindex.com/change/i4decac4bf27e84.md · JSON: https://rewindex.com/api/v1/changes/i4decac4bf27e84 · Generated 2026-10-18T02:28:34.263Z