{"id":"CVE-2026-17233","kind":"vulnerability","aliases":["CVE-2026-17233"],"related":[],"title":"IBM API Connect: authenticated users can probe internal network services via URLs","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 information about internal network services due to improper validation of user-supplied URLs. Addresses supplied by users are not sufficiently restricted, so the server could be made to contact internal systems.","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 validate user-supplied URLs, so the server can be made to contact internal systems. An attacker with a valid account can learn about services on the internal network.","severity":"medium","cvss":6.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ibm-api-connect","infrastructure","self-hosted"],"not_affected_if":["unauthenticated-only","version-outside-range"],"how_to_check":"- Check the installed IBM API Connect version against `10.0.8.0` through `10.0.8.12` and `12.1.0.0` through `12.1.1.2`","fix":"- IBM API Connect `10.0.8.0` to `10.0.8.12` and `12.1.0.0` to `12.1.1.2`: unknown; the sources do not name a fixed version","status":"open","published_at":"2026-11-07T05:18:31+00:00","first_seen_at":"2026-11-07T05:46:00+00:00","triaged_at":"2026-11-07T05:52:46+00:00","updated_at":"2026-11-07T05:52:46+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-07T05:52:46Z","model":"claude-haiku-5-5","output":{"fix":"- IBM API Connect `10.0.8.0` to `10.0.8.12` and `12.1.0.0` to `12.1.1.2`: unknown; the sources do not name a fixed version","reach":"network","title":"IBM API Connect: authenticated users can probe internal network services via URLs","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 validate user-supplied URLs, so the server can be made to contact internal systems. An attacker with a valid account can learn about services on the internal network.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["ibm-api-connect","self-hosted"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Authenticated attacker maps internal network services through server requests","analyst_note":"Find the IBM security bulletin for CVE-2026-17233 to confirm the fixed versions and which API Connect features accept user-supplied URLs.","how_to_check":"- Check the installed IBM API Connect version against `10.0.8.0` through `10.0.8.12` and `12.1.0.0` through `12.1.1.2`\n- unknown for further checks; the sources do not say which features or settings expose the URL handling","plain_action":"","needs_analyst":true,"not_affected_if":["version-outside-range","unauthenticated-only"],"who_is_affected":"Teams running IBM API Connect in the affected version ranges are exposed, since the server itself makes the outbound requests. The sources do not say which features trigger the URL handling, and an attacker needs an authenticated account. Installations outside the listed ranges are not affected.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000744,"input_tokens":4267,"output_tokens":635,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-17233':15A,18A '-2026':14A,17A '10.0.8.0':31B,72C '10.0.8.12':33B,74C '12.1.0.0':35B,76C '12.1.1.2':37B,78C 'account':60B 'address':101C 'allow':80C 'api':2A,21B,28B,70C 'attack':56B,84C 'authent':4A,83C 'connect':3A,22B,29B,71C 'contact':52B,116C 'could':79C,112C 'cve':13A,16A 'due':92C 'host':26B 'ibm':1A,20B,27B,69C 'ibm-api-connect':19B 'improp':94C 'inform':87C 'infrastructur':23B 'intern':8A,53B,67B,89C,117C 'learn':62B 'made':50B,114C 'network':9A,68B,90C 'obtain':86C 'probe':7A 'remot':82C 'restrict':108C 'self':25B 'self-host':24B 'server':47B,111C 'servic':10A,64B,91C 'suffici':107C 'suppli':43B,99C,102C 'system':54B,118C 'url':12A,44B,100C 'user':5A,42B,98C,104C 'user-suppli':41B,97C 'valid':40B,59B,95C 'version':30B 'via':11A","nicknames":[],"mitigations":[],"who_affected":"Teams running IBM API Connect in the affected version ranges are exposed, since the server itself makes the outbound requests. The sources do not say which features trigger the URL handling, and an attacker needs an authenticated account. Installations outside the listed ranges are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["ibmapiconnect","infrastructure","medium","selfhosted"],"campaign_type":null,"search_a":"'-17233':15A,18A '-2026':14A,17A 'api':2A 'authent':4A 'connect':3A 'cve':13A,16A 'ibm':1A 'intern':8A 'network':9A 'probe':7A 'servic':10A 'url':12A 'user':5A 'via':11A","search_b":"'10.0.8.0':31B '10.0.8.12':33B '12.1.0.0':35B '12.1.1.2':37B 'account':60B 'api':21B,28B 'attack':56B 'connect':22B,29B 'contact':52B 'host':26B 'ibm':20B,27B 'ibm-api-connect':19B 'infrastructur':23B 'intern':53B,67B 'learn':62B 'made':50B 'network':68B 'self':25B 'self-host':24B 'server':47B 'servic':64B 'suppli':43B 'system':54B 'url':44B 'user':42B 'user-suppli':41B 'valid':40B,59B 'version':30B","search_c":"'10.0.8.0':72C '10.0.8.12':74C '12.1.0.0':76C '12.1.1.2':78C 'address':101C 'allow':80C 'api':70C 'attack':84C 'authent':83C 'connect':71C 'contact':116C 'could':79C,112C 'due':92C 'ibm':69C 'improp':94C 'inform':87C 'intern':89C,117C 'made':114C 'network':90C 'obtain':86C 'remot':82C 'restrict':108C 'server':111C 'servic':91C 'suffici':107C 'suppli':99C,102C 'system':118C 'url':100C 'user':98C,104C 'user-suppli':97C 'valid':95C","first_public_at":"2026-11-07T05:18:31+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17233","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17233","severity":null,"published_at":"2026-11-07T05:18:31+00:00","modified_at":"2026-11-07T05:18:32+00:00","first_seen_at":"2026-11-07T05:46:00+00:00","fetched_at":"2026-11-07T05:46:00+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"}