{"id":"CVE-2026-114420","kind":"vulnerability","aliases":["CVE-2026-114420"],"related":[],"title":"SEPPmail gateway: unauthenticated LDAP input lets attackers enumerate email addresses","description":"SEPPmail Secure Email Gateway before 15.1.1 does not neutralize LDAP metacharacters in an unauthenticated account-selection input in its GINA web interface. A remote unauthenticated attacker can enumerate email addresses.","summary":"SEPPmail Secure Email Gateway before 15.1.1 does not escape LDAP metacharacters in an account-selection input of its GINA web interface. A remote attacker with no login can use it to enumerate valid email addresses.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["email-gateway","ldap","seppmail","vendor"],"not_affected_if":["version-15.1.1-or-later"],"how_to_check":"- Check the installed SEPPmail gateway version against `15.1.1` in the administration interface or release notes.","fix":"- SEPPmail Secure Email Gateway: move to `15.1.1` or later.","status":"open","published_at":"2026-11-04T09:17:40+00:00","first_seen_at":"2026-11-04T09:26:08+00:00","triaged_at":"2026-11-04T09:26:51+00:00","updated_at":"2026-11-04T09:26:51+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-11-04T09:26:51Z","model":"claude-haiku-5-5","output":{"fix":"- SEPPmail Secure Email Gateway: move to `15.1.1` or later.","reach":"internet","title":"SEPPmail gateway: unauthenticated LDAP input lets attackers enumerate email addresses","impact":"low","summary":"SEPPmail Secure Email Gateway before 15.1.1 does not escape LDAP metacharacters in an account-selection input of its GINA web interface. A remote attacker with no login can use it to enumerate valid email addresses.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["seppmail","email-gateway","ldap"],"confidence":0.6,"fix_status":"available","needs_auth":"no","worst_case":"attacker lists valid email addresses from the directory","analyst_note":"","how_to_check":"- Check the installed SEPPmail gateway version against `15.1.1` in the administration interface or release notes.\n- unknown for other checks; the sources do not say which settings expose the GINA interface.","plain_action":"","needs_analyst":false,"not_affected_if":["version-15.1.1-or-later"],"who_is_affected":"Organizations running SEPPmail Secure Email Gateway versions before 15.1.1 with the GINA web interface reachable by remote users. The sources do not say whether the flaw depends on a non-default setting.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000659,"input_tokens":4117,"output_tokens":495,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-114420':13A,16A '-2026':12A,15A '15.1.1':28B,64C 'account':37B,74C 'account-select':36B,73C 'address':10A,58B,89C 'attack':7A,47B,85C 'cve':11A,14A 'email':9A,18B,25B,57B,61C,88C 'email-gateway':17B 'enumer':8A,55B,87C 'escap':31B 'gateway':2A,19B,26B,62C 'gina':42B,79C 'input':5A,39B,76C 'interfac':44B,81C 'ldap':4A,20B,32B,68C 'let':6A 'login':50B 'metacharact':33B,69C 'neutral':67C 'remot':46B,83C 'secur':24B,60C 'select':38B,75C 'seppmail':1A,21B,23B,59C 'unauthent':3A,72C,84C 'use':52B 'valid':56B 'vendor':22B 'web':43B,80C","nicknames":[],"mitigations":[],"who_affected":"Organizations running SEPPmail Secure Email Gateway versions before 15.1.1 with the GINA web interface reachable by remote users. The sources do not say whether the flaw depends on a non-default setting.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["emailgateway","ldap","medium","seppmail","vendor"],"campaign_type":null,"first_public_at":"2026-11-04T09:17:40+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"vulnerability@ncsc.ch","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114420","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114420","severity":null,"published_at":"2026-11-04T09:17:40+00:00","modified_at":"2026-11-04T09:17:40+00:00","first_seen_at":"2026-11-04T09:26:08+00:00","fetched_at":"2026-11-04T09:26:08+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"}