{"id":"INC-cloudflare-a643zcsfc71q","kind":"incident","aliases":[],"related":[],"title":"Cloudflare: Increased Errors for R2 in Chicago","description":"Starting at 05:00 UTC, a network connectivity issue between several Cloudflare data centers caused a small percentage of requests to fail. R2 customers may have seen HTTP 500 errors, and requests for content served through Tiered Cache may have returned 520, 522 or 524 errors. Customers in Chicago and Newark saw the highest error rates, and other locations were affected at lower rates. Error rates have dropped close to normal levels since 05:30 UTC. We are continuing to monitor while the underlying network issue is resolved.","summary":null,"severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Cloudflare","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["cdn","cloudflare","dns","incident","ops","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-14T05:30:35+00:00","first_seen_at":"2026-11-14T05:31:58+00:00","triaged_at":"2026-11-14T05:33:29+00:00","updated_at":"2026-11-14T05:44:31+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'00':22C '05':21C,92C '30':93C '500':47C '520':60C '522':61C '524':63C 'a643zcsfc71q':11A 'affect':79C 'cach':56C 'caus':33C 'cdn':13B 'center':32C 'chicago':7A,67C 'close':87C 'cloudflar':1A,14B,30C 'cloudflare':10A,12A 'connect':26C 'content':52C 'continu':97C 'custom':42C,65C 'data':31C 'dns':15B 'drop':86C 'error':3A,48C,64C,73C,83C 'fail':40C 'highest':72C 'http':46C 'inc':9A 'inc-cloudflare-a643zcsfc71q':8A 'incid':16B 'increas':2A 'issu':27C,104C 'level':90C 'locat':77C 'lower':81C 'may':43C,57C 'monitor':99C 'network':25C,103C 'newark':69C 'normal':89C 'op':17B 'percentag':36C 'r2':5A,41C 'rate':74C,82C,84C 'request':38C,50C 'resolv':106C 'return':59C 'saw':70C 'seen':45C 'serv':53C 'sever':29C 'sinc':91C 'small':35C 'start':19C 'tier':55C 'under':102C 'utc':23C,94C 'vendor':18B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":null,"audience":null,"plain_action":null,"pkeys":["cloudflare"],"ptokens":["cloudflare"],"labels":["cdn","cloudflare","dns","incident","medium","ops","vendor"],"campaign_type":null,"search_a":"'a643zcsfc71q':11A 'chicago':7A 'cloudflar':1A 'cloudflare':10A,12A 'error':3A 'inc':9A 'inc-cloudflare-a643zcsfc71q':8A 'increas':2A 'r2':5A","search_b":"'cdn':13B 'cloudflar':14B 'dns':15B 'incid':16B 'op':17B 'vendor':18B","search_c":"'00':22C '05':21C,92C '30':93C '500':47C '520':60C '522':61C '524':63C 'affect':79C 'cach':56C 'caus':33C 'center':32C 'chicago':67C 'close':87C 'cloudflar':30C 'connect':26C 'content':52C 'continu':97C 'custom':42C,65C 'data':31C 'drop':86C 'error':48C,64C,73C,83C 'fail':40C 'highest':72C 'http':46C 'issu':27C,104C 'level':90C 'locat':77C 'lower':81C 'may':43C,57C 'monitor':99C 'network':25C,103C 'newark':69C 'normal':89C 'percentag':36C 'r2':41C 'rate':74C,82C,84C 'request':38C,50C 'resolv':106C 'return':59C 'saw':70C 'seen':45C 'serv':53C 'sever':29C 'sinc':91C 'small':35C 'start':19C 'tier':55C 'under':102C 'utc':23C,94C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-14T05:30:35+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"cloudflare:a643zcsfc71q","url":"https://www.cloudflarestatus.com/incidents/a643zcsfc71q","severity":"medium","published_at":"2026-11-14T05:30:35+00:00","modified_at":"2026-11-14T05:43:49+00:00","first_seen_at":"2026-11-14T05:31:58+00:00","fetched_at":"2026-11-14T05:50:53+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}