CircleCI: Increased 500 Errors on Pipeline and Workflow API Endpoints and UI
Affected components: CircleCI UICircleCI API
Timeline of updates
- investigating
Some customers are experiencing 500 errors when making requests to the pipeline values and workflow API endpoints, as well as errors in the UI.
Engineers are actively investigating.
- investigating
Our engineers are continuing to investigate the 500 errors customers are experiencing on the pipeline values and workflow API endpoints, as well as errors in the UI. Jobs currently running are not impacted.
- monitoring
A fix has been deployed for the 500 errors customers were experiencing on the pipeline values and workflow API endpoints and in the UI. Engineers are monitoring the change. Jobs running are not impacted
- resolved
Between 13:29 UTC and 18:20 UTC on June 9, 2026, some customers experienced 500 errors when making requests to the pipeline values and workflow API endpoints, as well as errors in the UI. Jobs running were not impacted during this window. The issue has been resolved and all affected functionality has returned to normal. We thank you for your patience while our team worked on implementing a fix.
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-10-17 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
5487136e2ff9447b…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).
Cite this
Status incident (vendor impact label: minor) posted by CircleCI, started 2026-06-09 17:45 UTC, resolved after 58 min, 4 update(s).
- Title
- Increased 500 Errors on Pipeline and Workflow API Endpoints and UI
- Vendor
- CircleCI
- Date
- URL
- https://rewindex.com/company/circleci/incidents/tqh9zwszp05w
CircleCI profileRecent CircleCI incidentsAll outages on June 9, 2026CircleCI in June 2026MarkdownJSON