{"id":"INC-polymarket-cmu1iwq1e01621mqboccoh76s","kind":"incident","aliases":[],"related":[],"title":"Polymarket: Scheduled CLOB maintenance (No downtime expected)","description":"Type: Maintenance\n    Duration: 30 minutes\n\n    Affected Components: Predictions Trading API (CLOB)\n    Sep 15, 04:30:00 GMT+0 - Completed - Maintenance has completed successfully Sep 15, 04:00:01 GMT+0 - Identified - Maintenance is now in progress Sep 14, 17:35:06 GMT+0 - Identified - We are updating periphery services for the CLOB. No downtime is expected. Users may experience temporary degradation around API key creation and deletes.","summary":"Polymarket ran a planned 30-minute maintenance on its Predictions Trading API (CLOB) to update periphery services. The notice says users may see brief degradation when creating or deleting API keys; it reports no security flaw.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Polymarket","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["incident","polymarket","security","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-09-15T04:00:00+00:00","first_seen_at":"2026-11-08T17:00:43+00:00","triaged_at":"2026-11-08T17:03:20+00:00","updated_at":"2026-11-08T17:03:20+00:00","category":"vendor","confidence":0.9,"triage":{"at":"2026-11-08T17:03:20Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"Polymarket: scheduled CLOB maintenance, no downtime expected","impact":"low","summary":"Polymarket ran a planned 30-minute maintenance on its Predictions Trading API (CLOB) to update periphery services. The notice says users may see brief degradation when creating or deleting API keys; it reports no security flaw.","audience":"everyone","category":"vendor","nicknames":[],"who_cares":["polymarket"],"confidence":0.9,"fix_status":"none","needs_auth":"unknown","worst_case":"unknown","analyst_note":"","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":[],"who_is_affected":"This is a routine maintenance notice, not a vulnerability. Users of Polymarket's trading API may see temporary slowdowns when creating or deleting API keys, and the maintenance has already completed.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000658,"input_tokens":4660,"output_tokens":384,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'+0':70C,82C,95C '00':68C,79C '01':80C '04':66C,78C '06':93C '14':90C '15':65C,77C '17':91C '30':21B,56C,67C '35':92C 'affect':58C 'api':28B,46B,62C,115C 'around':114C 'brief':40B 'clob':3A,29B,63C,104C 'cmu1iwq1e01621mqboccoh76s':11A 'complet':71C,74C 'compon':59C 'creat':43B 'creation':117C 'degrad':41B,113C 'delet':45B,119C 'downtim':6A,106C 'durat':55C 'expect':7A,108C 'experi':111C 'flaw':52B 'gmt':69C,81C,94C 'identifi':83C,96C 'inc':9A 'inc-polymarket-cmu1iwq1e01621mqboccoh76s':8A 'incid':13B 'key':47B,116C 'mainten':4A,23B,54C,72C,84C 'may':38B,110C 'minut':22B,57C 'notic':35B 'peripheri':32B,100C 'plan':20B 'polymarket':1A,10A,12A,14B,17B 'predict':26B,60C 'progress':88C 'ran':18B 'report':49B 'say':36B 'schedul':2A 'secur':15B,51B 'see':39B 'sep':64C,76C,89C 'servic':33B,101C 'success':75C 'temporari':112C 'trade':27B,61C 'type':53C 'updat':31B,99C 'user':37B,109C 'vendor':16B","nicknames":[],"mitigations":[],"who_affected":"This is a routine maintenance notice, not a vulnerability. Users of Polymarket's trading API may see temporary slowdowns when creating or deleting API keys, and the maintenance has already completed.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":null,"pkeys":["polymarket"],"ptokens":["polymarket"],"labels":["incident","polymarket","security","unknown","vendor"],"campaign_type":null,"search_a":"'clob':3A 'cmu1iwq1e01621mqboccoh76s':11A 'downtim':6A 'expect':7A 'inc':9A 'inc-polymarket-cmu1iwq1e01621mqboccoh76s':8A 'mainten':4A 'polymarket':1A,10A,12A 'schedul':2A","search_b":"'30':21B 'api':28B,46B 'brief':40B 'clob':29B 'creat':43B 'degrad':41B 'delet':45B 'flaw':52B 'incid':13B 'key':47B 'mainten':23B 'may':38B 'minut':22B 'notic':35B 'peripheri':32B 'plan':20B 'polymarket':14B,17B 'predict':26B 'ran':18B 'report':49B 'say':36B 'secur':15B,51B 'see':39B 'servic':33B 'trade':27B 'updat':31B 'user':37B 'vendor':16B","search_c":"'+0':70C,82C,95C '00':68C,79C '01':80C '04':66C,78C '06':93C '14':90C '15':65C,77C '17':91C '30':56C,67C '35':92C 'affect':58C 'api':62C,115C 'around':114C 'clob':63C,104C 'complet':71C,74C 'compon':59C 'creation':117C 'degrad':113C 'delet':119C 'downtim':106C 'durat':55C 'expect':108C 'experi':111C 'gmt':69C,81C,94C 'identifi':83C,96C 'key':116C 'mainten':54C,72C,84C 'may':110C 'minut':57C 'peripheri':100C 'predict':60C 'progress':88C 'sep':64C,76C,89C 'servic':101C 'success':75C 'temporari':112C 'trade':61C 'type':53C 'updat':99C 'user':109C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-09-15T04:00:00+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"polymarket:cmu1iwq1e01621mqboccoh76s","url":"https://status.polymarket.com/maintenance/cmu1iwq1e01621mqboccoh76s","severity":null,"published_at":"2026-09-15T04:00:00+00:00","modified_at":"2026-09-15T04:00:00+00:00","first_seen_at":"2026-11-08T17:00:43+00:00","fetched_at":"2026-11-09T01:51:41+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"}