{"id":"CVE-2026-123179","kind":"vulnerability","aliases":["CVE-2026-123179"],"related":[],"title":"Ivanti Sentry: insecure Tomcat shutdown listener lets a local user cause denial of service","description":"An insecure default initialization of resource in the Tomcat shutdown listener of Ivanti Ivanti Sentry before versions 10.7.4 and 10.8.3 allows a local authenticated attacker to cause a denial of service.","summary":"Ivanti Sentry ships a Tomcat shutdown listener that is insecurely initialized by default. A local authenticated attacker can use it to cause a denial of service.","severity":"medium","cvss":5.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ivanti-sentry","self-hosted","vendor"],"not_affected_if":["fixed-version","not-running-sentry"],"how_to_check":"- Check the installed Ivanti Sentry version against the fixed versions below","fix":"- Ivanti Sentry: move to `10.7.4` or `10.8.3` (the sources give fixed versions for these branches)","status":"open","published_at":"2026-11-10T16:17:18+00:00","first_seen_at":"2026-11-10T16:22:34+00:00","triaged_at":"2026-11-10T16:23:37+00:00","updated_at":"2026-11-10T16:23:37+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-11-10T16:23:37Z","model":"claude-haiku-5-5","output":{"fix":"- Ivanti Sentry: move to `10.7.4` or `10.8.3` (the sources give fixed versions for these branches)","reach":"local","title":"Ivanti Sentry: insecure Tomcat shutdown listener lets a local user cause denial of service","impact":"low","summary":"Ivanti Sentry ships a Tomcat shutdown listener that is insecurely initialized by default. A local authenticated attacker can use it to cause a denial of service.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["ivanti-sentry","self-hosted"],"confidence":0.6,"fix_status":"available","needs_auth":"yes","worst_case":"local authenticated user causes service outage on the appliance","analyst_note":"","how_to_check":"- Check the installed Ivanti Sentry version against the fixed versions below\n- unknown","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["not-running-sentry","fixed-version"],"who_is_affected":"Ivanti Sentry deployments before 10.7.4 and 10.8.3 are affected. Exploitation needs a local account on the host. Teams not running Sentry can skip it.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000679,"input_tokens":4534,"output_tokens":451,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-123179':17A,20A '-2026':16A,19A '10.7.4':71C '10.8.3':73C 'allow':74C 'attack':44B,78C 'authent':43B,77C 'caus':11A,49B,80C 'cve':15A,18A 'default':40B,56C 'denial':12A,51B,82C 'host':26B 'initi':38B,57C 'insecur':3A,37B,55C 'ivanti':1A,22B,28B,66C,67C 'ivanti-sentri':21B 'let':7A 'listen':6A,34B,64C 'local':9A,42B,76C 'resourc':59C 'self':25B 'self-host':24B 'sentri':2A,23B,29B,68C 'servic':14A,53B,84C 'ship':30B 'shutdown':5A,33B,63C 'tomcat':4A,32B,62C 'use':46B 'user':10A 'vendor':27B 'version':70C","nicknames":[],"mitigations":[],"who_affected":"Ivanti Sentry deployments before 10.7.4 and 10.8.3 are affected. Exploitation needs a local account on the host. Teams not running Sentry can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["ivantisentry","medium","selfhosted","vendor"],"campaign_type":null,"search_a":"'-123179':17A,20A '-2026':16A,19A 'caus':11A 'cve':15A,18A 'denial':12A 'insecur':3A 'ivanti':1A 'let':7A 'listen':6A 'local':9A 'sentri':2A 'servic':14A 'shutdown':5A 'tomcat':4A 'user':10A","search_b":"'attack':44B 'authent':43B 'caus':49B 'default':40B 'denial':51B 'host':26B 'initi':38B 'insecur':37B 'ivanti':22B,28B 'ivanti-sentri':21B 'listen':34B 'local':42B 'self':25B 'self-host':24B 'sentri':23B,29B 'servic':53B 'ship':30B 'shutdown':33B 'tomcat':32B 'use':46B 'vendor':27B","search_c":"'10.7.4':71C '10.8.3':73C 'allow':74C 'attack':78C 'authent':77C 'caus':80C 'default':56C 'denial':82C 'initi':57C 'insecur':55C 'ivanti':66C,67C 'listen':64C 'local':76C 'resourc':59C 'sentri':68C 'servic':84C 'shutdown':63C 'tomcat':62C 'version':70C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T16:17:18+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":"3c1d8aa1-5a33-4ea4-8992-aadd6440af75","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-123179","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123179","severity":null,"published_at":"2026-11-10T16:17:18+00:00","modified_at":"2026-11-10T16:17:18+00:00","first_seen_at":"2026-11-10T16:22:34+00:00","fetched_at":"2026-11-10T16:22:34+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"}