{"id":"CVE-2026-17380","kind":"vulnerability","aliases":["CVE-2026-17380"],"related":[],"title":"IBM API Connect: path validation flaw exposes other tenants' data","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 access sensitive information belonging to other tenants due to improper validation of a path parameter. A path value in a request is not sufficiently validated, which could allow a user to reach data outside their own tenant.","summary":"IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 fail to validate a path parameter in requests. An authenticated user can read sensitive information belonging to other tenants.","severity":"high","cvss":8.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"API Connect","fixed":["10.0.8.13"],"affected":">= 10.0.8.0, <= 10.0.8.12","ecosystem":"vendor"},{"name":"API Connect V12 OnPrem","fixed":["12.1.1.3"],"affected":">= 12.1.0.0, <= 12.1.1.2","ecosystem":"vendor"}],"ecosystems":[],"tags":["api-gateway","auth-required","ibm-api-connect","infrastructure","multi-tenant","self-hosted"],"not_affected_if":["auth-required","single-tenant","versions-outside-range"],"how_to_check":"Check your API Connect version: affected are 10.0.8.0 through 10.0.8.12 and V12 OnPrem 12.1.0.0 through 12.1.1.2. Fixed in 10.0.8.13 and 12.1.1.3.","fix":"Upgrade IBM API Connect 10.0.8.x to 10.0.8.13, or 12.1.x (V12 OnPrem) to 12.1.1.3. IBM lists no workaround.","status":"open","published_at":"2026-11-07T05:18:51+00:00","first_seen_at":"2026-11-07T05:46:06+00:00","triaged_at":"2026-11-07T05:50:04+00:00","updated_at":"2026-11-07T06:10:01+00:00","category":"infrastructure","confidence":0.9,"triage":{"at":"2026-11-07T05:50:04Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"IBM API Connect: path validation flaw exposes other tenants' data","impact":"medium","summary":"IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 fail to validate a path parameter in requests. An authenticated user can read sensitive information belonging to other tenants.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["ibm-api-connect","multi-tenant","api-gateway"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"authenticated user reads other tenants' sensitive data","analyst_note":"Find IBM's security bulletin for CVE-2026-17380 to confirm the fixed versions and any workaround; the NVD entry alone does not state them.","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":["single-tenant","versions-outside-range"],"who_is_affected":"Organizations running IBM API Connect in the affected version ranges with multiple tenants, where an authenticated user could reach another tenant's data through a crafted path. Single-tenant deployments and instances on versions outside the listed ranges are less exposed. The sources do not give further detail.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00071,"input_tokens":4268,"output_tokens":566,"severity_before":"high"},"analyst_status":"done","analyst_note":"Find IBM's security bulletin for CVE-2026-17380 to confirm the fixed versions and any workaround; the NVD entry alone does not state them.","search":"'-17380':13A,16A '-2026':12A,15A '10.0.8.0':44B,73C '10.0.8.12':46B,75C '12.1.0.0':48B,77C '12.1.1.2':50B,79C 'access':87C 'allow':81C,114C 'api':2A,17A,19A,24B,31B,41B,71C 'api-gateway':23B 'attack':85C 'auth':27B 'auth-requir':26B 'authent':60B,84C 'belong':66B,90C 'connect':3A,18A,20A,32B,42B,72C 'could':80C,113C 'cve':11A,14A 'data':10A,119C 'due':94C 'expos':7A 'fail':51B 'flaw':6A 'gateway':25B 'host':39B 'ibm':1A,30B,40B,70C 'ibm-api-connect':29B 'improp':96C 'inform':65B,89C 'infrastructur':33B 'multi':35B 'multi-ten':34B 'onprem':22A 'outsid':120C 'paramet':56B,101C 'path':4A,55B,100C,103C 'reach':118C 'read':63B 'remot':83C 'request':58B,107C 'requir':28B 'self':38B 'self-host':37B 'sensit':64B,88C 'suffici':110C 'tenant':9A,36B,69B,93C,123C 'user':61B,116C 'v12':21A 'valid':5A,53B,97C,111C 'valu':104C 'version':43B","nicknames":[],"mitigations":[],"who_affected":"Teams running IBM API Connect (self-managed 10.0.8.x or V12 OnPrem 12.1.x) that host more than one tenant or organization. Any authenticated user can send a request with an unvalidated path value and read another tenant's data. Single-tenant installs have less exposure but should still upgrade.","tier":"B","verified":{"fix":{"at":"2026-11-07T06:10:01Z","by":"analyst","doc":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","run_id":2017},"products":{"at":"2026-11-07T06:10:01Z","by":"analyst","doc":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","run_id":2017},"workarounds":{"at":"2026-11-07T06:10:01Z","by":"analyst","doc":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","run_id":2017},"how_to_check":{"at":"2026-11-07T06:10:01Z","by":"analyst","doc":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","run_id":2017}},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["apiconnect","apiconnectv12onprem","connect","connectv12onprem"],"ptokens":["api","connect","onprem","v12"],"labels":["apigateway","authrequired","high","ibmapiconnect","infrastructure","multitenant","selfhosted"],"campaign_type":null,"search_a":"'-17380':13A,16A '-2026':12A,15A 'api':2A,17A,19A 'connect':3A,18A,20A 'cve':11A,14A 'data':10A 'expos':7A 'flaw':6A 'ibm':1A 'onprem':22A 'path':4A 'tenant':9A 'v12':21A 'valid':5A","search_b":"'10.0.8.0':44B '10.0.8.12':46B '12.1.0.0':48B '12.1.1.2':50B 'api':24B,31B,41B 'api-gateway':23B 'auth':27B 'auth-requir':26B 'authent':60B 'belong':66B 'connect':32B,42B 'fail':51B 'gateway':25B 'host':39B 'ibm':30B,40B 'ibm-api-connect':29B 'inform':65B 'infrastructur':33B 'multi':35B 'multi-ten':34B 'paramet':56B 'path':55B 'read':63B 'request':58B 'requir':28B 'self':38B 'self-host':37B 'sensit':64B 'tenant':36B,69B 'user':61B 'valid':53B 'version':43B","search_c":"'10.0.8.0':73C '10.0.8.12':75C '12.1.0.0':77C '12.1.1.2':79C 'access':87C 'allow':81C,114C 'api':71C 'attack':85C 'authent':84C 'belong':90C 'connect':72C 'could':80C,113C 'data':119C 'due':94C 'ibm':70C 'improp':96C 'inform':89C 'outsid':120C 'paramet':101C 'path':100C,103C 'reach':118C 'remot':83C 'request':107C 'sensit':88C 'suffici':110C 'tenant':93C,123C 'user':116C 'valid':97C,111C 'valu':104C","first_public_at":"2026-11-07T05:18:51+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17380","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17380","severity":null,"published_at":"2026-11-07T05:18:51+00:00","modified_at":"2026-11-07T05:18:51+00:00","first_seen_at":"2026-11-07T05:46:06+00:00","fetched_at":"2026-11-07T05:46:06+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-17380:2017","url":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-41","severity":null,"published_at":"2026-11-07T06:10:01+00:00","modified_at":"2026-11-07T06:10:01+00:00","first_seen_at":"2026-11-07T06:10:01+00:00","fetched_at":"2026-11-07T06:10:01+00:00","note":"Read both IBM bulletins (10.0.8.13 and 12.1.1.3 pages); both list CVE-2026-17380, fix versions and 'Workarounds: None' stated. No exploitation or PoC checked beyond NVD/OpenCVE (KEV: No). Did not search social posts.","cites":["https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-41","https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39"]}],"documents":[{"id":93150,"url":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-41","title":"IBM Security Bulletin: Multiple Vulnerabilities in IBM API Connect (10.0.8.13)","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null},{"id":93149,"url":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","title":"IBM Security Bulletin: Multiple Vulnerabilities in IBM API Connect (v12.1.1.3)","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null}],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}