{"id":"CVE-2026-17155","kind":"vulnerability","aliases":["CVE-2026-17155"],"related":[],"title":"IBM API Connect: authenticated user can run arbitrary scripts via input","description":"IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary scripts due to improper neutralization of user-controlled input.","summary":"IBM API Connect versions 12.1.0.0 through 12.1.1.2 do not neutralize user-controlled input properly. A remote attacker with a valid account can execute arbitrary scripts in the product.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["api-connect","ibm","infrastructure","self-hosted"],"not_affected_if":["outside-affected-range"],"how_to_check":"- Check the installed API Connect version against the affected range 12.1.0.0 through 12.1.1.2.","fix":null,"status":"open","published_at":"2026-11-07T05:18:28+00:00","first_seen_at":"2026-11-07T05:45:59+00:00","triaged_at":"2026-11-07T05:54:05+00:00","updated_at":"2026-11-07T05:54:05+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-07T05:54:05Z","model":"claude-haiku-5-5","output":{"fix":"- unknown; the sources do not name a fixed version.","reach":"network","title":"IBM API Connect: authenticated user can run arbitrary scripts via input","impact":"medium","summary":"IBM API Connect versions 12.1.0.0 through 12.1.1.2 do not neutralize user-controlled input properly. A remote attacker with a valid account can execute arbitrary scripts in the product.","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 runs arbitrary scripts on the server","analyst_note":"Find IBM's security bulletin for CVE-2026-17155 to confirm the fixed version and any required settings.","how_to_check":"- Check the installed API Connect version against the affected range 12.1.0.0 through 12.1.1.2.\n- unknown for further checks; the sources do not say.","plain_action":"","needs_analyst":true,"not_affected_if":["outside-affected-range"],"who_is_affected":"Organisations running IBM API Connect 12.1.0.0 through 12.1.1.2. Exposure requires an authenticated account on the product. Sources do not describe further conditions, so unknown whether non-default setups are needed.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000674,"input_tokens":4205,"output_tokens":508,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-17155':14A,17A '-2026':13A,16A '12.1.0.0':30B,58C '12.1.1.2':32B,60C 'account':47B 'allow':62C 'api':2A,19B,27B,56C 'api-connect':18B 'arbitrari':8A,50B,69C 'attack':43B,66C 'authent':4A,65C 'connect':3A,20B,28B,57C 'control':38B,78C 'could':61C 'cve':12A,15A 'due':71C 'execut':49B,68C 'host':25B 'ibm':1A,21B,26B,55C 'improp':73C 'infrastructur':22B 'input':11A,39B,79C 'neutral':35B,74C 'product':54B 'proper':40B 'remot':42B,64C 'run':7A 'script':9A,51B,70C 'self':24B 'self-host':23B 'user':5A,37B,77C 'user-control':36B,76C 'valid':46B 'version':29B 'via':10A","nicknames":[],"mitigations":[],"who_affected":"Organisations running IBM API Connect 12.1.0.0 through 12.1.1.2. Exposure requires an authenticated account on the product. Sources do not describe further conditions, so unknown whether non-default setups are needed.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["apiconnect","ibm","infrastructure","medium","selfhosted"],"campaign_type":null,"search_a":"'-17155':14A,17A '-2026':13A,16A 'api':2A 'arbitrari':8A 'authent':4A 'connect':3A 'cve':12A,15A 'ibm':1A 'input':11A 'run':7A 'script':9A 'user':5A 'via':10A","search_b":"'12.1.0.0':30B '12.1.1.2':32B 'account':47B 'api':19B,27B 'api-connect':18B 'arbitrari':50B 'attack':43B 'connect':20B,28B 'control':38B 'execut':49B 'host':25B 'ibm':21B,26B 'infrastructur':22B 'input':39B 'neutral':35B 'product':54B 'proper':40B 'remot':42B 'script':51B 'self':24B 'self-host':23B 'user':37B 'user-control':36B 'valid':46B 'version':29B","search_c":"'12.1.0.0':58C '12.1.1.2':60C 'allow':62C 'api':56C 'arbitrari':69C 'attack':66C 'authent':65C 'connect':57C 'control':78C 'could':61C 'due':71C 'execut':68C 'ibm':55C 'improp':73C 'input':79C 'neutral':74C 'remot':64C 'script':70C 'user':77C 'user-control':76C","first_public_at":"2026-11-07T05:18:28+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17155","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17155","severity":null,"published_at":"2026-11-07T05:18:28+00:00","modified_at":"2026-11-07T05:18:28+00:00","first_seen_at":"2026-11-07T05:45:59+00:00","fetched_at":"2026-11-07T05:45:59+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"}