{"id":"CVE-2026-17085","kind":"vulnerability","aliases":["CVE-2026-17085"],"related":[],"title":"IBM API Connect: case-sensitivity flaw lets authenticated users send unauthorized emails","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 authenticated attacker to bypass security restrictions due to improper handling of case sensitivity. An access restriction is not applied consistently to all variations of the input, which could allow it to be circumvented and unauthorized emails to be sent.","summary":"IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 apply an access restriction inconsistently across case variations of input. A remote attacker with an account can bypass that restriction and cause unauthorized emails to be sent.","severity":"medium","cvss":4.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ibm-api-connect","vendor"],"not_affected_if":["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`","fix":null,"status":"open","published_at":"2026-11-07T05:18:24+00:00","first_seen_at":"2026-11-07T05:45:58+00:00","triaged_at":"2026-11-07T05:54:32+00:00","updated_at":"2026-11-07T05:54:32+00:00","category":"vendor","confidence":0.6,"triage":{"at":"2026-11-07T05:54:32Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"IBM API Connect: case-sensitivity flaw lets authenticated users send unauthorized emails","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 apply an access restriction inconsistently across case variations of input. A remote attacker with an account can bypass that restriction and cause unauthorized emails to be sent.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["ibm-api-connect"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Authenticated user sends unauthorized emails by bypassing access restriction","analyst_note":"Check the IBM security bulletin for API Connect to confirm the fixed version and which email feature is affected; sources only give the NVD entry.","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- unknown for other checks; the sources do not say","plain_action":"","needs_analyst":true,"not_affected_if":["unaffected-version"],"who_is_affected":"Organisations running IBM API Connect in the affected version ranges, where authenticated users can reach the restricted email-sending functionality. The sources do not say which configurations or features are needed, so teams on other versions can skip it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000701,"input_tokens":4274,"output_tokens":548,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-17085':16A,19A '-2026':15A,18A '10.0.8.0':29B,66C '10.0.8.12':31B,68C '12.1.0.0':33B,70C '12.1.1.2':35B,72C 'access':38B,91C 'account':51B 'across':41B 'allow':74C,105C 'api':2A,22B,26B,64C 'appli':36B,95C 'attack':48B,78C 'authent':9A,77C 'bypass':53B,80C 'case':5A,42B,88C 'case-sensit':4A 'caus':57B 'circumv':109C 'connect':3A,23B,27B,65C 'consist':96C 'could':73C,104C 'cve':14A,17A 'due':83C 'email':13A,59B,112C 'flaw':7A 'handl':86C 'ibm':1A,21B,25B,63C 'ibm-api-connect':20B 'improp':85C 'inconsist':40B 'input':45B,102C 'let':8A 'remot':47B,76C 'restrict':39B,55B,82C,92C 'secur':81C 'send':11A 'sensit':6A,89C 'sent':62B,115C 'unauthor':12A,58B,111C 'user':10A 'variat':43B,99C 'vendor':24B 'version':28B","nicknames":[],"mitigations":[],"who_affected":"Organisations running IBM API Connect in the affected version ranges, where authenticated users can reach the restricted email-sending functionality. The sources do not say which configurations or features are needed, so teams on other versions can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["ibmapiconnect","medium","vendor"],"campaign_type":null,"search_a":"'-17085':16A,19A '-2026':15A,18A 'api':2A 'authent':9A 'case':5A 'case-sensit':4A 'connect':3A 'cve':14A,17A 'email':13A 'flaw':7A 'ibm':1A 'let':8A 'send':11A 'sensit':6A 'unauthor':12A 'user':10A","search_b":"'10.0.8.0':29B '10.0.8.12':31B '12.1.0.0':33B '12.1.1.2':35B 'access':38B 'account':51B 'across':41B 'api':22B,26B 'appli':36B 'attack':48B 'bypass':53B 'case':42B 'caus':57B 'connect':23B,27B 'email':59B 'ibm':21B,25B 'ibm-api-connect':20B 'inconsist':40B 'input':45B 'remot':47B 'restrict':39B,55B 'sent':62B 'unauthor':58B 'variat':43B 'vendor':24B 'version':28B","search_c":"'10.0.8.0':66C '10.0.8.12':68C '12.1.0.0':70C '12.1.1.2':72C 'access':91C 'allow':74C,105C 'api':64C 'appli':95C 'attack':78C 'authent':77C 'bypass':80C 'case':88C 'circumv':109C 'connect':65C 'consist':96C 'could':73C,104C 'due':83C 'email':112C 'handl':86C 'ibm':63C 'improp':85C 'input':102C 'remot':76C 'restrict':82C,92C 'secur':81C 'sensit':89C 'sent':115C 'unauthor':111C 'variat':99C","first_public_at":"2026-11-07T05:18:24+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17085","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17085","severity":null,"published_at":"2026-11-07T05:18:24+00:00","modified_at":"2026-11-07T05:18:24+00:00","first_seen_at":"2026-11-07T05:45:58+00:00","fetched_at":"2026-11-07T05:45:58+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"}