CircleCI Outage History
Uptime record, past incidents, and downtime history for CircleCI.
Checking current status...
90-Day Trend
Monthly Uptime
| Month | Uptime | Days Tracked | Days with Issues |
|---|---|---|---|
| July 2026 | 22.2% | 9 | 7 |
| June 2026 | 20% | 30 | 24 |
| May 2026 | 32.3% | 31 | 21 |
| April 2026 | 33.3% | 21 | 14 |
Uptime is calculated from daily worst-status snapshots. A day with any non-operational status counts as a day with issues.
Daily Status (Last 91 Days)
Apr 10
Today
Operational
Degraded
Partial Outage
Major Outage
Maintenance
No Data
Incident History
July 2026
Outage impacting web experience and pipelines starting
Started: Jul 2, 3:25 PM
monitoring
Pipelines are continuing to run as normal.
We will continue monitoring for recovery.
Jul 2, 4:29 PM
monitoring
We have identified a source of increased system load which caused failures processing API requests.
We have mitigated the issue and jobs are now running as expected and UI access has recovered.
Some pipelines may have failed or failed to start. Resubmitting should correct these issues.
We are continuing to monitor to ensure recovery.
Jul 2, 4:24 PM
investigating
We are investigating an issue that may cause some customers to be redirected to a login page and prevents some pipelines from starting. Thank you for your patience as we continue our mitigation of this issue.
Jul 2, 4:07 PM
investigating
We are currently investigating this issue.
Jul 2, 3:25 PM
June 2026
Some customers are unable to access their organizations
Started: Jun 29, 10:23 AM
monitoring
Error rates viewing orgs are recovering. We will continue to monitor to verify the fix resolves the issues.
Jun 29, 4:44 PM
identified
We have identified the cause of errors accessing orgs. We are implementing a fix, and will monitor for recovery as the change rolls out.
Jun 29, 3:54 PM
investigating
We are continuing to investigate reports that some customers cannot access their organizations in CircleCI.
Our investigation continues to point to an authorization issue between CircleCI and GitHub. Some affected users have received a 403 from GitHub indicating the resource is SAML protected and the OAuth token may not be authorized.
We previously shared re-authenticating as a potential workaround. We have since received reports that this didn't restore access for all affected customers, s...
Jun 29, 12:16 PM
investigating
We are still investigating reports that some customers cannot access their organizations in CircleCI.
Early findings suggest the problem may be related to GitHub authorization, where affected users receive a 403 from GitHub indicating the resource is SAML protected and the OAuth token may not be authorized.
We have not yet confirmed this as the root cause. As a potential workaround, some users may be able to restore access by performing a re-authentication: https://support.circleci.com/hc/e...
Jun 29, 11:44 AM
investigating
We are continuing to investigate reports that some customers are unable to access their organizations in CircleCI. Those affected may see errors when loading their organizations.
Our engineering team are still working to identify the cause. We will share another update as soon as we have more information.
Jun 29, 11:33 AM
investigating
We are investigating reports that some customers are unable to access their organizations in CircleCI. Those affected may see errors when loading their organizations.
Our engineering team is actively investigating.
Jun 29, 10:23 AM
Investigating — Usage API Not Available
Started: Jun 25, 10:44 PM
investigating
Customers using the Usage API may not be able to access the API. Our team is investigating.
Jun 25, 10:44 PM
Issues with network routing for Mac jobs
Started: Jun 24, 11:13 PM
monitoring
A fix has been implemented and we are monitoring the results.
Jun 25, 2:58 AM
investigating
Due to continued reports of intermittent failures and a lack of sustained improvement while in monitoring status, this incident is elevated back to investigating to escalate with our infrastructure provider.
Jun 25, 2:54 AM
monitoring
We are continuing to monitor. We still observe a low percentage of intermittent failures. The failure rate is trending down as we continue to monitor. We advise customers to contact CircleCI Support if they see a change in degraded services and increased failure rate.
Jun 25, 2:20 AM
monitoring
We are continuing to monitor for any further issues.
Jun 25, 1:22 AM
monitoring
Our team is moving this incident to Monitoring status based on significant improvement seen in our tests and low error rate. We are seeing improvement in network routing for Mac jobs and are actively engaged with our infrastructure provider. If your Mac jobs experience network-related failures or degraded service please reach out to CircleCI support.
Jun 25, 1:13 AM
identified
We are seeing improvement in Mac job network routing.
We will continue to monitor for signs of recovery.
Jun 25, 12:39 AM
identified
Mac jobs are still seeing intermittent failures with network routing.
We are working with our infrastructure provider to address the networking issues.
Jun 24, 11:56 PM
identified
We have implemented a change to address the routing issues and are monitoring the results.
Jun 24, 11:33 PM
investigating
What's happening
Our engineers are investigating network routing issues for some Mac jobs.
What's impacted
Mac jobs that make outbound requests, including checking out from GitHub.
Jun 24, 11:13 PM
Delays starting Docker jobs
Started: Jun 23, 6:34 PM
monitoring
What's happening
Our engineers have deployed a fix and we are observing the job backlog clearing. Docker jobs are now starting normally.
What's impacted
Customers who submitted Docker jobs during the incident window may still see some jobs completing with elevated queue times. Newly submitted jobs should be starting at normal times.
What can you expect
Docker job startup times are returning to normal. Thank you for your patience while our engineers resolved this issue.
We are monitoring th...
Jun 23, 7:29 PM
identified
What's impacted
Customers running Docker jobs. Affected jobs are queuing rather than starting, resulting in elevated wait times.
What can you expect
Docker jobs may remain stuck in "preparing environment" for an extended period. Our engineers have identified the cause and are actively working to restore normal job startup times. Thank you for your patience while our team deploys a fix.
Next update
We will provide another update as soon as more information is available
Jun 23, 7:04 PM
identified
We are deploying a change to mitigate this issue.
Jun 23, 6:42 PM
investigating
We are investigating reports of delays starting Docker jobs.
Jun 23, 6:34 PM
Elevated API Error Rates for Bitbucket Users
Started: Jun 11, 9:46 PM
investigating
What's happening
We are investigating an issue we believe is related to an ongoing incident with Atlassian Bitbucket's authentication service. We are actively monitoring Bitbucket's status.
What's impacted
Customers using Bitbucket as their VCS provider may be experiencing disruptions.
What can you expect
You may see errors when CircleCI attempts to interact with your Bitbucket repositories. Thank you for your patience while our engineers investigate.
We will provide an update as soon as w...
Jun 11, 9:46 PM
Issue authenticating only Bitbucket users
Started: Jun 11, 9:31 PM
monitoring
What's happening
Atlassian Bitbucket has moved their OAuth service incident to monitoring. You can follow their status at https://bitbucket.status.atlassian.com/incidents/h51sr145gsmx
What's impacted
Customers using Bitbucket as their VCS provider may be experiencing disruptions.
What can you expect
You may see errors when CircleCI attempts to interact with your Bitbucket repositories. Customers using Bitbucket as their login provider may also be unable to authenticate to CircleCI.
Thank ...
Jun 12, 12:10 AM
identified
What's happening
Atlassian Bitbucket has acknowledged an incident affecting their OAuth service, which is the cause of the errors our customers are experiencing. The status of their incident is available at: https://bitbucket.status.atlassian.com/incidents/h51sr145gsmx
What's impacted
Customers using Bitbucket as their VCS provider may be experiencing disruptions.
What can you expect
You may see errors when CircleCI attempts to interact with your Bitbucket repositories. Customers using Bitb...
Jun 11, 10:57 PM
identified
What's happening
We are investigating an issue we believe is related to an ongoing incident with Atlassian Bitbucket's authentication service. We are actively monitoring Bitbucket's status.
What's impacted
Customers using Bitbucket as their VCS provider may be experiencing disruptions.
What can you expect
You may see errors when CircleCI attempts to interact with your Bitbucket repositories. Thank you for your patience while our engineers investigate.
We will provide an update as soon as w...
Jun 11, 10:05 PM
investigating
We are currently investigating this issue.
Jun 11, 9:31 PM
Issues publishing orbs
Started: Jun 10, 10:39 PM
monitoring
The fix has been rolled out and we are monitoring for recovery.
Jun 10, 10:56 PM
identified
We have identified the cause of the failure and are rolling out a change.
Jun 10, 10:55 PM
investigating
We are investigating reports of orb publishing failing.
Jun 10, 10:39 PM
Incident with GitHub APIs
Started: Jun 10, 4:30 PM
monitoring
We are seeing signs of recovery from the GitHub API.
Jun 10, 4:32 PM
investigating
We are continuing to investigate this issue.
Jun 10, 4:30 PM
investigating
Some users may have seen delays or missing commit statuses on GitHub PRs due to an ongoing GitHub API incident.
We are continuing to process builds as normal.
We will provide further updates as we get more information
Jun 10, 4:30 PM
Increased 500 Errors on Pipeline and Workflow API Endpoints and UI
Started: Jun 9, 5:45 PM
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
Jun 9, 6:32 PM
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.
Jun 9, 6:20 PM
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.
Jun 9, 5:45 PM
macOS jobs failing to start
Started: Jun 7, 4:20 AM
identified
We have identified an issue causing macOS jobs to fail to start and are working to restore service. This impacts customers running macOS jobs across all resource classes.
Thank you for your patience while our engineers work to resolve this. We will provide another update within 30 minutes.
Jun 7, 4:20 AM
Errors on Cloud Docker Pulls
Started: Jun 2, 12:52 PM
monitoring
We identified the issue and have deployed a fix and are now monitoring.
Jun 2, 1:06 PM
investigating
We are noticing an increase in errors when pulling Docker images. We are investigating.
Jun 2, 12:52 PM
Mac jobs failing to start
Started: Jun 1, 1:04 AM
monitoring
Mac jobs are running successfully, and we are continuing to monitor the performance of our Mac fleet.
Thank you for your patience.
Jun 1, 2:05 AM
monitoring
We are seeing Mac jobs starting successfully and improved network connectivity to the Mac fleet, however our infrastructure provider is continuing to experience a DDoS attack.
We will continue to monitor the recovery while bringing additional capacity to our platform.
Jun 1, 1:36 AM
investigating
We are continuing to investigate this issue.
Jun 1, 1:05 AM
investigating
Mac jobs are continuing to experience failures. Our infrastructure provider is continuing to report that they are experiencing a DDoS attack causing high network latency and packet loss for our Mac fleet. We are working to bring up additional capacity to restore service.
Jun 1, 1:04 AM
May 2026
Mac jobs failing to start
Started: May 31, 6:15 PM
monitoring
We have processed the backlog of Mac jobs and job start times are recovering to normal parameters.
Jun 1, 12:42 AM
monitoring
We are seeing Mac jobs starting successfully and improved network connectivity to the Mac fleet. We will continue to monitor the recovery.
Jun 1, 12:24 AM
identified
Mac jobs are continuing to experience failures. Our infrastructure provider is reporting they are experiencing a DDoS attack causing high network latency and packet loss for our Mac fleet. We are working to bring up additional capacity to restore service.
We will continue to update as more information is available.
May 31, 10:38 PM
identified
We are continuing to investigate failures with Mac jobs starting due to high network latency and packet loss. Our engineers remain engaged with our infrastructure provider to restore service.
We will provide another update within the hour, or sooner if circumstances change. We thank you for your patience while our engineers work to resolve this.
May 31, 9:24 PM
identified
We are still seeing failures with Mac jobs starting due to high network latency and packet loss. We will continue to update as we have more information on a resolution.
May 31, 8:05 PM
identified
We are continuing to work on resolving the networking issue for Mac jobs.
May 31, 7:09 PM
identified
We have identified a network outage that is preventing Mac jobs from starting. This include m4pro.medium and m4pro.large resource types.
We are working with our infrastructure provider to restore service.
We will update this incident as we work to resolve the issue.
May 31, 6:15 PM
Usage API data delayed for 5/28
Started: May 29, 2:51 PM
investigating
We've identified a small number of duplicate records in the Usage API data. Data is available, but may be inaccurate. We continue to investigate.
May 29, 2:57 PM
investigating
We are currently investigating this issue.
May 29, 2:51 PM
Elevated 429 errors pulling from maven central
Started: May 14, 4:49 PM
monitoring
We're monitoring to verify that rate limited jobs are recovering.
May 14, 6:08 PM
investigating
Jobs pulling dependencies from maven central are experiencing increased 429 errors due to maven central rate limits.
We are investigating the issue and working to identify mitigations for customer jobs.
May 14, 4:49 PM
Some Pipelines are being lost
Started: May 6, 7:42 PM
monitoring
The rollback was successful. Pipelines are flowing normally again. Monitoring for a bit.
May 6, 8:03 PM
investigating
We are continuing to investigate this issue.
May 6, 7:43 PM
investigating
We are having an issue with some pipelines being lost. We are rolling back the affected service, and will share more information when we have it.
May 6, 7:42 PM
GitHub incident with Pull Requests
Started: May 6, 5:54 PM
monitoring
We are continuing to monitor for any further issues.
May 6, 5:54 PM
monitoring
GitHub is reporting a major incident for degraded pull request availability. This does not impact running CircleCI builds for newly created pull requests or push events.
May 6, 5:54 PM
Jobs using Xcode 14.3.1 on m4pro.large are delayed.
Started: May 1, 10:51 AM
monitoring
A fix has been implemented and we are monitoring the results.
May 1, 11:02 AM
identified
The issue has been identified and a fix is being implemented.
May 1, 10:58 AM
investigating
We are investigating the cause.
May 1, 10:51 AM
Usage API data is delayed for data from yesterday, 4/30. All prior data is available. We are investigating.
Started: May 1, 10:04 AM
investigating
We are currently investigating
May 1, 10:04 AM
April 2026
Build failures Xcode 26.4.0
Started: Apr 24, 5:25 PM
monitoring
A fix has been implemented and we are monitoring the results.
Apr 24, 6:01 PM
identified
There are build failures for Xcode 26.4.0; we have identified the issue and are currently implementing a fix.
Apr 24, 5:25 PM
Usage API data delayed this morning
Started: Apr 18, 12:07 PM
identified
The Usage API issue has been identified and a fix is being implemented. We expect to the issue be resolved within a few hours.
Apr 18, 1:17 PM
investigating
Usage API data is delayed this morning. Team is investigating.
Apr 18, 12:07 PM
Delays in Workflow and Job data in the Usage API
Started: Apr 8, 1:20 PM
identified
We have identified an issue causing Insights workflow and job data to be delayed when requested through the Usage API. Some data for the last 24 hours may not be fully reflected while we work to process the backlog of events. Insights UI is not impacted by this issue. Thank you for your patience.
Apr 8, 1:20 PM
Degradation in CircleCI UI elements
Started: Apr 6, 8:33 PM
monitoring
A fix has been implemented and we are monitoring the results. Thank you for your patience.
Apr 6, 8:43 PM
investigating
We are currently investigating an issue in the CircleCI UI impacting approval jobs and SSH key navigation. This is an interface-only issue and builds continue to flow as usual.
Apr 6, 8:33 PM
Usage API data for 4/1 is incomplete with multiple columns showing null values. Data prior to 4/1 is unaffected. We are investigating.
Started: Apr 2, 7:19 PM
identified
The Usage API issue has been identified and the fix is being implemented.
Apr 2, 9:23 PM
investigating
We are currently investigating this issue.
Apr 2, 7:19 PM
Some pipelines not triggering due to GitHub API failures
Started: Apr 1, 11:55 AM
identified
We are continuing to see very high error rates from GitHub's `GET /repos/{owner}/{repo}/commits` API.
Apr 1, 11:58 AM
investigating
Some pipelines may not trigger due to a high rate of API failures on one of GitHub's API endpoints. This includes some manually-triggered pipelines, some OAuth hooks and some scheduled pipelines.
Apr 1, 11:55 AM
March 2026
Insights API and Dashboard displaying stale data for reporting windows greater than 24 hours
Started: Mar 16, 3:02 AM
investigating
We are investigating an issue where the Insights API and dashboard are returning outdated metrics for reporting windows longer than 24 hours (last 7 days, last 30 days, last 60 days, last 90 days). The last-24-hours window is unaffected and returning current data.
This issue is limited to the display of aggregated metrics on Insights Page only. All pipeline pages, job runs, and builds remain fully operational and are not impacted. We will provide updates as our investigation progresses.
Mar 16, 3:02 AM