{"id":"CVE-2026-17406","kind":"vulnerability","aliases":["CVE-2026-17406"],"related":[],"title":"IBM API Connect: server-side request forgery leaks sensitive information to authenticated users","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 obtain sensitive information due to server-side request forgery. Address checks can be bypassed, which could allow the server to reach destinations that should be blocked.","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 block some internal destinations when the server makes requests. A remote attacker with an account can use this to reach blocked addresses and obtain sensitive information.","severity":"high","cvss":8.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["api-gateway","ibm-api-connect","infrastructure","self-hosted"],"not_affected_if":["outside-affected-versions"],"how_to_check":"- Check the installed API Connect version against the affected ranges `10.0.8.0` to `10.0.8.12` and `12.1.0.0` to `12.1.1.2`\n- Review the vendor advisory for the deployment's exact product and fix level: unknown","fix":"- Move to a release newer than `10.0.8.12` or `12.1.1.2`, per the vendor's fixed versions: exact fixed version unknown from the sources","status":"open","published_at":"2026-11-07T05:18:57+00:00","first_seen_at":"2026-11-07T05:46:07+00:00","triaged_at":"2026-11-07T05:48:55+00:00","updated_at":"2026-11-07T05:48:55+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-07T05:48:55Z","model":"claude-haiku-5-5","output":{"fix":"- Move to a release newer than `10.0.8.12` or `12.1.1.2`, per the vendor's fixed versions: exact fixed version unknown from the sources","reach":"network","title":"IBM API Connect: server-side request forgery leaks sensitive information to authenticated users","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 block some internal destinations when the server makes requests. A remote attacker with an account can use this to reach blocked addresses and obtain sensitive information.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["ibm-api-connect","self-hosted","api-gateway"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Authenticated attacker reads sensitive information from internal server destinations","analyst_note":"Confirm the fixed version for each affected branch and whether any configuration changes the exposure, using the IBM security bulletin for CVE-2026-17406.","how_to_check":"- Check the installed API Connect version against the affected ranges `10.0.8.0` to `10.0.8.12` and `12.1.0.0` to `12.1.1.2`\n- Review the vendor advisory for the deployment's exact product and fix level: unknown","plain_action":"","needs_analyst":true,"not_affected_if":["outside-affected-versions"],"who_is_affected":"Teams running IBM API Connect in the affected version ranges are exposed, and the attacker needs a valid account on the platform. Deployments outside those ranges are not affected. The sources do not describe further configuration conditions.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000738,"input_tokens":4255,"output_tokens":624,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-17406':17A,20A '-2026':16A,19A '10.0.8.0':36B,74C '10.0.8.12':38B,76C '12.1.0.0':40B,78C '12.1.1.2':42B,80C 'account':59B 'address':66B,98C 'allow':82C,105C 'api':2A,22B,26B,33B,72C 'api-gateway':21B 'attack':56B,86C 'authent':13A,85C 'block':45B,65B,114C 'bypass':102C 'check':99C 'connect':3A,27B,34B,73C 'could':81C,104C 'cve':15A,18A 'destin':48B,110C 'due':91C 'fail':43B 'forgeri':8A,97C 'gateway':23B 'host':31B 'ibm':1A,25B,32B,71C 'ibm-api-connect':24B 'inform':11A,70B,90C 'infrastructur':28B 'intern':47B 'leak':9A 'make':52B 'obtain':68B,88C 'reach':64B,109C 'remot':55B,84C 'request':7A,53B,96C 'self':30B 'self-host':29B 'sensit':10A,69B,89C 'server':5A,51B,94C,107C 'server-sid':4A,93C 'side':6A,95C 'use':61B 'user':14A 'version':35B","nicknames":[],"mitigations":[],"who_affected":"Teams running IBM API Connect in the affected version ranges are exposed, and the attacker needs a valid account on the platform. Deployments outside those ranges are not affected. The sources do not describe further configuration conditions.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["apigateway","high","ibmapiconnect","infrastructure","selfhosted"],"campaign_type":null,"search_a":"'-17406':17A,20A '-2026':16A,19A 'api':2A 'authent':13A 'connect':3A 'cve':15A,18A 'forgeri':8A 'ibm':1A 'inform':11A 'leak':9A 'request':7A 'sensit':10A 'server':5A 'server-sid':4A 'side':6A 'user':14A","search_b":"'10.0.8.0':36B '10.0.8.12':38B '12.1.0.0':40B '12.1.1.2':42B 'account':59B 'address':66B 'api':22B,26B,33B 'api-gateway':21B 'attack':56B 'block':45B,65B 'connect':27B,34B 'destin':48B 'fail':43B 'gateway':23B 'host':31B 'ibm':25B,32B 'ibm-api-connect':24B 'inform':70B 'infrastructur':28B 'intern':47B 'make':52B 'obtain':68B 'reach':64B 'remot':55B 'request':53B 'self':30B 'self-host':29B 'sensit':69B 'server':51B 'use':61B 'version':35B","search_c":"'10.0.8.0':74C '10.0.8.12':76C '12.1.0.0':78C '12.1.1.2':80C 'address':98C 'allow':82C,105C 'api':72C 'attack':86C 'authent':85C 'block':114C 'bypass':102C 'check':99C 'connect':73C 'could':81C,104C 'destin':110C 'due':91C 'forgeri':97C 'ibm':71C 'inform':90C 'obtain':88C 'reach':109C 'remot':84C 'request':96C 'sensit':89C 'server':94C,107C 'server-sid':93C 'side':95C","first_public_at":"2026-11-07T05:18:57+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-2026-17406","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17406","severity":null,"published_at":"2026-11-07T05:18:57+00:00","modified_at":"2026-11-07T05:18:57+00:00","first_seen_at":"2026-11-07T05:46:07+00:00","fetched_at":"2026-11-07T05:46:07+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"}