{"id":"INC-circleci-f2w7c18std4n","kind":"incident","aliases":[],"related":[],"title":"CircleCI: Issues loading pipelines for a small number of projects","description":"This incident has been resolved.  A small number of customers who created pipelines between 18:53 UTC and 19:24 UTC that contained config using deprecated config syntax will have seen their build-type jobs fail to start. Customers whose jobs or pipelines failed may rerun them.","summary":null,"severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"CircleCI","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["ci","circleci","incident","ops","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"resolved","published_at":"2026-09-10T20:25:39+00:00","first_seen_at":"2026-10-23T19:12:22+00:00","triaged_at":"2026-10-23T21:50:49+00:00","updated_at":"2026-10-23T21:50:49+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'18':35C '19':39C '24':40C '53':36C 'build':54C 'build-typ':53C 'ci':16B 'circleci':1A,13A,15A,17B 'config':44C,47C 'contain':43C 'creat':32C 'custom':30C,60C 'deprec':46C 'f2w7c18std4n':14A 'fail':57C,65C 'inc':12A 'inc-circleci-f2w7c18std4n':11A 'incid':18B,22C 'issu':2A 'job':56C,62C 'load':3A 'may':66C 'number':8A,28C 'op':19B 'pipelin':4A,33C,64C 'project':10A 'rerun':67C 'resolv':25C 'seen':51C 'small':7A,27C 'start':59C 'syntax':48C 'type':55C 'use':45C 'utc':37C,41C 'vendor':20B 'whose':61C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-09-10T20:25:39+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"circleci:f2w7c18std4n","url":"https://stspg.io/l0tsrtv1tkbl","severity":"medium","published_at":"2026-09-10T20:25:39+00:00","modified_at":"2026-09-10T22:39:19+00:00","first_seen_at":"2026-10-23T19:12:22+00:00","fetched_at":"2026-10-25T21:37:07+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}