{"id":"INC-anthropic-3cqf3pmlnr96","kind":"incident","aliases":[],"related":[],"title":"Anthropic: Elevated errors for Claude Opus 5.5","description":"The issue affecting Claude Opus 5.5 has been resolved. Impact occurred from 17:23 PT on October 23 / 00:23 UTC on October 24 to 17:34 PT on October 23 / 00:34 UTC on October 24.","summary":null,"severity":"high","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Anthropic","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["ai","anthropic","incident","llm","ops","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"resolved","published_at":"2026-10-24T00:31:37+00:00","first_seen_at":"2026-10-24T00:33:21+00:00","triaged_at":"2026-10-25T04:51:22+00:00","updated_at":"2026-10-25T04:51:22+00:00","category":"vendor","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'00':37C,50C '17':31C,44C '23':32C,36C,38C,49C '24':42C,55C '34':45C,51C '3cqf3pmlnr96':11A '5.5':7A,24C 'affect':21C 'ai':13B 'anthrop':1A,14B 'anthropic':10A,12A 'claud':5A,22C 'elev':2A 'error':3A 'impact':28C 'inc':9A 'inc-anthropic-3cqf3pmlnr96':8A 'incid':15B 'issu':20C 'llm':16B 'occur':29C 'octob':35C,41C,48C,54C 'op':17B 'opus':6A,23C 'pt':33C,46C 'resolv':27C 'utc':39C,52C 'vendor':18B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-24T00:31:37+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"statuspage","external_id":"anthropic:3cqf3pmlnr96","url":"https://stspg.io/dmn3bc440bnb","severity":"high","published_at":"2026-10-24T00:31:37+00:00","modified_at":"2026-10-24T00:37:17+00:00","first_seen_at":"2026-10-24T00:33:21+00:00","fetched_at":"2026-10-25T21:37:05+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"}