{"id":"CVE-2026-17389","kind":"vulnerability","aliases":["CVE-2026-17389"],"related":[],"title":"IBM API Connect: LDAP injection leaks extra directory data to remote attackers","description":"IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote attacker to obtain sensitive information from the connected LDAP directory due to LDAP injection. Input is not properly neutralized in directory lookups, which could cause queries to return additional data.","summary":"IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 do not neutralize input in LDAP directory lookups. A remote attacker can craft queries that return more data than intended from the connected LDAP directory.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ibm-api-connect","ldap","self-hosted","vendor"],"not_affected_if":["no-ldap-integration","unaffected-version"],"how_to_check":"- Check the installed API Connect version against the affected ranges 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2.\n- Check whether API Connect is configured to use an LDAP directory for authentication or lookups.","fix":null,"status":"open","published_at":"2026-11-07T05:18:53+00:00","first_seen_at":"2026-11-07T05:46:06+00:00","triaged_at":"2026-11-07T05:54:09+00:00","updated_at":"2026-11-07T05:54:09+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-11-07T05:54:09Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"IBM API Connect: LDAP injection leaks extra directory data to remote attackers","impact":"low","summary":"IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 do not neutralize input in LDAP directory lookups. A remote attacker can craft queries that return more data than intended from the connected LDAP directory.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["ibm-api-connect","ldap","self-hosted"],"confidence":0.6,"fix_status":"unknown","needs_auth":"unknown","worst_case":"remote attacker reads extra data from the LDAP directory","analyst_note":"Confirm the fixed version and whether unauthenticated requests reach the LDAP lookup; check the IBM security bulletin for CVE-2026-17389.","how_to_check":"- Check the installed API Connect version against the affected ranges 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2.\n- Check whether API Connect is configured to use an LDAP directory for authentication or lookups.","plain_action":"","needs_analyst":true,"not_affected_if":["unaffected-version","no-ldap-integration"],"who_is_affected":"Organisations running IBM API Connect in the affected version ranges that use an LDAP directory for lookups are exposed. Deployments on other versions, or without LDAP integration, are not listed as affected by the sources. The sources do not describe the exact request path an attacker would use.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000722,"input_tokens":4260,"output_tokens":592,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-17389':15A,18A '-2026':14A,17A '10.0.8.0':32B,67C '10.0.8.12':34B,69C '12.1.0.0':36B,71C '12.1.1.2':38B,73C 'addit':106C 'allow':75C 'api':2A,21B,29B,65C 'attack':12A,49B,78C 'caus':102C 'connect':3A,22B,30B,61B,66C,85C 'could':74C,101C 'craft':51B 'cve':13A,16A 'data':9A,56B,107C 'directori':8A,45B,63B,87C,98C 'due':88C 'extra':7A 'host':26B 'ibm':1A,20B,28B,64C 'ibm-api-connect':19B 'inform':82C 'inject':5A,91C 'input':42B,92C 'intend':58B 'ldap':4A,23B,44B,62B,86C,90C 'leak':6A 'lookup':46B,99C 'neutral':41B,96C 'obtain':80C 'proper':95C 'queri':52B,103C 'remot':11A,48B,77C 'return':54B,105C 'self':25B 'self-host':24B 'sensit':81C 'vendor':27B 'version':31B","nicknames":[],"mitigations":[],"who_affected":"Organisations running IBM API Connect in the affected version ranges that use an LDAP directory for lookups are exposed. Deployments on other versions, or without LDAP integration, are not listed as affected by the sources. The sources do not describe the exact request path an attacker would use.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["ibmapiconnect","ldap","medium","selfhosted","vendor"],"campaign_type":null,"search_a":"'-17389':15A,18A '-2026':14A,17A 'api':2A 'attack':12A 'connect':3A 'cve':13A,16A 'data':9A 'directori':8A 'extra':7A 'ibm':1A 'inject':5A 'ldap':4A 'leak':6A 'remot':11A","search_b":"'10.0.8.0':32B '10.0.8.12':34B '12.1.0.0':36B '12.1.1.2':38B 'api':21B,29B 'attack':49B 'connect':22B,30B,61B 'craft':51B 'data':56B 'directori':45B,63B 'host':26B 'ibm':20B,28B 'ibm-api-connect':19B 'input':42B 'intend':58B 'ldap':23B,44B,62B 'lookup':46B 'neutral':41B 'queri':52B 'remot':48B 'return':54B 'self':25B 'self-host':24B 'vendor':27B 'version':31B","search_c":"'10.0.8.0':67C '10.0.8.12':69C '12.1.0.0':71C '12.1.1.2':73C 'addit':106C 'allow':75C 'api':65C 'attack':78C 'caus':102C 'connect':66C,85C 'could':74C,101C 'data':107C 'directori':87C,98C 'due':88C 'ibm':64C 'inform':82C 'inject':91C 'input':92C 'ldap':86C,90C 'lookup':99C 'neutral':96C 'obtain':80C 'proper':95C 'queri':103C 'remot':77C 'return':105C 'sensit':81C","first_public_at":"2026-11-07T05:18:53+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17389","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17389","severity":null,"published_at":"2026-11-07T05:18:53+00:00","modified_at":"2026-11-07T05:18:53+00:00","first_seen_at":"2026-11-07T05:46:06+00:00","fetched_at":"2026-11-07T05:46:06+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}