# Semgrep: Major incident: Lockfileless scans failing for certain deployments

**Summary:** Semgrep reported a major incident affecting Managed Scans: lockfileless scans failed for certain deployments from 2026-08-12 18:16 UTC until resolution at 2026-08-12 21:03 UTC, lasting 2 h 46 min. A fix was rolled out by 2026-08-12 20:23 UTC, restoring scans; no specific root cause was disclosed. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-08-12 18:16 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/ywrm627knkp7](https://stspg.io/ywrm627knkp7)
- [Company: Semgrep](https://rewindex.com/company/semgrep.md)
- Versions: before (none: first archived) → after incident\_version:316/sh65gm5f2194@cd41654fe71f
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Lockfileless scans failing for certain deployments
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-12 18:16 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-12 21:03 UTC
```

**6. Added: Affected components**

```diff
+ Managed Scans, semgrep.dev - Managed Scans
```

**7. Added: Update** (investigating) · 2026-08-12 18:16 UTC

```diff
+ We are currently investigating this issue.
```

**8. Added: Update** (identified) · 2026-08-12 19:33 UTC

```diff
+ We've identified the root cause of the issue and are currently working on a fix.
```

**9. Added: Update** (monitoring) · 2026-08-12 20:23 UTC

```diff
+ We have rolled out a fix, and scans are now working as expected. We are closely monitoring to ensure continued stability.
```

**10. Added: Update** (resolved) · 2026-08-12 21:03 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-12 18:16 UTC | Major incident: Lockfileless scans failing for certain deployments (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/if504fe72a93608 · Markdown: https://rewindex.com/change/if504fe72a93608.md · JSON: https://rewindex.com/api/v1/changes/if504fe72a93608 · Generated 2026-10-18T02:28:34.865Z