{"id":"CVE-2026-108309","kind":"vulnerability","aliases":["CVE-2026-108309"],"related":[],"title":"Tanium: Performance Client Extension can be made to consume unbounded resources","description":"Tanium addressed an uncontrolled resource consumption vulnerability in Performance Client Extension.","summary":"Tanium's Performance Client Extension has an uncontrolled resource consumption flaw, which can let a crafted input exhaust resources on the host. The sources do not say what input triggers it or what the exhaustion affects.","severity":"medium","cvss":5.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["endpoint-management","tanium","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-27T18:17:32+00:00","first_seen_at":"2026-10-27T18:32:59+00:00","triaged_at":"2026-10-27T18:34:53+00:00","updated_at":"2026-10-27T18:34:53+00:00","category":"vendor","confidence":0.4,"triage":{"at":"2026-10-27T18:34:53Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"Tanium: Performance Client Extension can be made to consume unbounded resources","impact":"low","summary":"Tanium's Performance Client Extension has an uncontrolled resource consumption flaw, which can let a crafted input exhaust resources on the host. The sources do not say what input triggers it or what the exhaustion affects.","category":"vendor","nicknames":[],"who_cares":["tanium","endpoint-management"],"confidence":0.4,"needs_auth":"unknown","worst_case":"Resource exhaustion on the endpoint, causing denial of service","analyst_note":"Check the Tanium security advisory and NVD entry CVE-2026-108309 for affected versions, fixed version, and trigger conditions.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000498,"input_tokens":3247,"output_tokens":347,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-108309':14A,17A '-2026':13A,16A 'address':60C 'affect':58B 'client':3A,26B,68C 'consum':9A 'consumpt':32B,64C 'craft':38B 'cve':12A,15A 'endpoint':19B 'endpoint-manag':18B 'exhaust':40B,57B 'extens':4A,27B,69C 'flaw':33B 'host':44B 'input':39B,51B 'let':36B 'made':7A 'manag':20B 'perform':2A,25B,67C 'resourc':11A,31B,41B,63C 'say':49B 'sourc':46B 'tanium':1A,21B,23B,59C 'trigger':52B 'unbound':10A 'uncontrol':30B,62C 'vendor':22B 'vulner':65C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T18:17:32+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvss_by":"3938794e-25f5-4123-a1ba-5cbd7f104512","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-108309","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108309","severity":null,"published_at":"2026-10-27T18:17:32+00:00","modified_at":"2026-10-27T18:17:32+00:00","first_seen_at":"2026-10-27T18:32:59+00:00","fetched_at":"2026-10-27T18:32:59+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"}