{"id":"CVE-2026-108326","kind":"vulnerability","aliases":["CVE-2026-108326"],"related":[],"title":"Tanium Stream Client Extension accepts improperly validated certificates","description":"Tanium addressed an improper certificate validation vulnerability in Stream Client Extension.","summary":"Tanium's Stream Client Extension does not properly validate certificates in some connections. The sources do not say what an attacker can do with that, beyond the medium CVSS score of 6.5.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["stream-client-extension","tanium","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-27T18:17:33+00:00","first_seen_at":"2026-10-27T18:32:59+00:00","triaged_at":"2026-10-27T18:34:46+00:00","updated_at":"2026-10-27T18:34:46+00:00","category":"vendor","confidence":0.35,"triage":{"at":"2026-10-27T18:34:46Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"unknown","title":"Tanium Stream Client Extension accepts improperly validated certificates","impact":"medium","summary":"Tanium's Stream Client Extension does not properly validate certificates in some connections. The sources do not say what an attacker can do with that, beyond the medium CVSS score of 6.5.","category":"vendor","nicknames":[],"who_cares":["tanium","stream-client-extension"],"confidence":0.35,"needs_auth":"unknown","worst_case":"unknown","analyst_note":"Check the Tanium security advisory for affected Stream Client Extension versions, the fixed release, and what traffic or certificate path is affected (https://nvd.nist.gov/vuln/detail/CVE-2026-108326).","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":0.000497,"input_tokens":3239,"output_tokens":347,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-108326':11A,14A '-2026':10A,13A '6.5':52B 'accept':5A 'address':54C 'attack':41B 'beyond':46B 'certif':8A,30B,57C 'client':3A,17B,24B,62C 'connect':33B 'cve':9A,12A 'cvss':49B 'extens':4A,18B,25B,63C 'improp':6A,56C 'medium':48B 'proper':28B 'say':38B 'score':50B 'sourc':35B 'stream':2A,16B,23B,61C 'stream-client-extens':15B 'tanium':1A,19B,21B,53C 'valid':7A,29B,58C 'vendor':20B 'vulner':59C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T18:17:33+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L","cvss_by":"3938794e-25f5-4123-a1ba-5cbd7f104512","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-108326","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-108326","severity":null,"published_at":"2026-10-27T18:17:33+00:00","modified_at":"2026-10-27T18:17:33+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"}