Postmortem Index

Explore incident reports from various companies

Company

CircleCI

10 published postmortems tracked here, spanning Oct 2013 – Apr 2025.

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Postmortems
10
Categories
5
Years covered
13
Products
6
Title Date Categories Source
CircleCI workflows latency and failures on April 4, 2025
workflows
 2025-04-04
Automation Config Change
Original →
CircleCI UI and build capabilities disruption on April 4, 2025
CircleCI UI, build capabilities
 2025-04-04
Automation Config Change
Original →
CircleCI jobs not starting due to Kubernetes networking failure
jobs
 2023-03-14 – 2023-03-15
Cloud
Original →
CircleCI security incident and data exfiltration (December 2022) 2022-12-16 – 2022-12-22
Cloud Security
Original →
CircleCI jobs stuck in "not running" state on November 8, 2021
job distribution service
 2021-11-08
Cascading Failure Config Change
Original →
Delay in starting Docker Jobs. Machine & remote Docker environments blocked
job execution
 2021-05-21 – 2021-05-22
Automation Cloud Config Change
Original →
CircleCI Workflow Delay Incidents March 26 - April 10, 2019
MongoDB
 2019-03-26 – 2019-04-10
Config Change
Original →
CircleCI Linux build queue backing up October 2015
linux build queue
 2015-10-14 – 2015-10-15
Config Change
Original →
CircleCI DB performance issue
database
 2015-07-07 – 2015-07-08
Cascading Failure Config Change
Original →
MongoHQ security breach impacting CircleCI customer data
MongoHQ
 2013-10-27 – 2013-10-30
Automation Config Change Security
Original →