# Buildkite: Incident updated: Buildkite response to the eMudhra certificate compromise

> Incident updated: Buildkite response to the eMudhra certificate compromise. Detected 2026-10-20 by Rewindex: what changed on Buildkite’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/r4bced361de0b8a
Last updated: 2026-10-20T23:33:01Z

**Summary:** _summary pending_
- Kind: Incident update · Label: Normal progress (rule)
- Changed: 2026-10-20 23:33 UTC · Detected: 2026-10-20 23:33 UTC
- [Source: https://stspg.io/yn3cmf9rh4rd](https://stspg.io/yn3cmf9rh4rd)
- [Company: Buildkite](https://rewindex.com/company/buildkite.md)
- Versions: before incident\_version:178/hnnlf9y36vt5@f504ddb09c61 → after incident\_version:178/hnnlf9y36vt5@299de120de5f
- Change 1 of 3 for this incident

Incident page (full timeline): [Buildkite response to the eMudhra certificate compromise](https://rewindex.com/company/buildkite/incidents/hnnlf9y36vt5.md)
## What changed

**1. Changed: Status**

```diff
- investigating
+ monitoring
```

**2. Added: Update** (monitoring) · 2026-10-20 23:25 UTC

```diff
+ We're continuing to monitor the situation, and are making releases to many of our components that run in customer infrastructure. At time of writing, we've released versions that distrust the affected eMudhra certificates for: - Buildkite agent: https://github.com/buildkite/agent:   - v4.7.0: https://github.com/buildkite/agent/releases/tag/v4.7.0   - v3.138.2: https://github.com/buildkite/agent/releases/tag/v3.138.2 - Buildkite CLI: https://github.com/buildkite/cli/releases/tag/v3.64.2 - bktec: https://github.com/buildkite/test-engine-client/releases/tag/v3.3.1 We recommend updating to these versions to prevent exposure to the affected certificate providers. We will continue to issue updates for the other binaries we distribute, and are updating any internal services that are affected.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-20 23:33 UTC | Incident updated: Buildkite response to the eMudhra certificate compromise (this change) | Normal progress |
| 2026-10-21 05:13 UTC | [Incident updated: Buildkite response to the eMudhra certificate compromise](https://rewindex.com/change/r53532e500eac4e.md) | Normal progress |
| 2026-10-21 22:43 UTC | [Incident updated: Buildkite response to the eMudhra certificate compromise](https://rewindex.com/change/r9f656207ba442b.md) | Normal progress |

Next: [change](https://rewindex.com/change/r53532e500eac4e.md) · All Buildkite changes: [timeline](https://rewindex.com/company/buildkite/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._

## Cite this

Incident updated: Buildkite response to the eMudhra certificate compromise on Buildkite’s status page, changed 2026-10-20 23:33 UTC (change 1 of 3).

- Canonical URL: https://rewindex.com/change/r4bced361de0b8a
- Citation: Buildkite, “Incident updated: Buildkite response to the eMudhra certificate compromise” (2026-10-20 23:33 UTC). Archived by Rewindex: https://rewindex.com/change/r4bced361de0b8a (CC BY 4.0).
- Markdown link: `[Buildkite: Incident updated: Buildkite response to the eMudhra certificate compromise (2026-10-20)](https://rewindex.com/change/r4bced361de0b8a)`


---
Canonical: https://rewindex.com/change/r4bced361de0b8a · Markdown: https://rewindex.com/change/r4bced361de0b8a.md · JSON: https://rewindex.com/api/v1/changes/r4bced361de0b8a · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T17:17:48.989Z