{"id":"CVE-2026-17369","kind":"vulnerability","aliases":["CVE-2026-17369"],"related":[],"title":"IBM API Connect: login CSRF can sign users into attacker accounts","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 attacker to force a user to authenticate into an attacker-controlled account due to cross-site request forgery. The sign-in flow does not sufficiently verify that a login response belongs to the user's own request, which could link the victim's session to an account controlled by the attacker.","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 check that a sign-in response matches the user's own request. An attacker can force a victim's browser to log in to an attacker-controlled account, linking the victim's session to it.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ibm-api-connect","infrastructure","self-hosted"],"not_affected_if":["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":null,"status":"open","published_at":"2026-11-07T05:18:49+00:00","first_seen_at":"2026-11-07T05:46:05+00:00","triaged_at":"2026-11-07T05:52:55+00:00","updated_at":"2026-11-07T05:52:55+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-07T05:52:55Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"IBM API Connect: login CSRF can sign users into attacker accounts","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 do not check that a sign-in response matches the user's own request. An attacker can force a victim's browser to log in to an attacker-controlled account, linking the victim's session to it.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["ibm-api-connect","self-hosted"],"confidence":0.6,"fix_status":"unknown","needs_auth":"no","worst_case":"Victim's session is linked to an attacker-controlled account","analyst_note":"Check IBM's security bulletin for API Connect for the fixed version and any setting or mitigation for this login CSRF issue.","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 other checks: the sources do not say","plain_action":"","needs_analyst":true,"not_affected_if":["version-outside-range"],"who_is_affected":"Teams that run IBM API Connect in the affected version ranges and expose its sign-in flow to browsers. The sources do not describe configuration details beyond the version ranges, so whether a given deployment is reachable depends on its setup. Installations outside the listed ranges are not affected.","user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000708,"input_tokens":4282,"output_tokens":559,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-17369':14A,17A '-2026':13A,16A '10.0.8.0':30B,77C '10.0.8.12':32B,79C '12.1.0.0':34B,81C '12.1.1.2':36B,83C 'account':11A,68B,100C,137C 'allow':85C 'api':2A,20B,27B,75C 'attack':10A,53B,66B,88C,98C,141C 'attacker-control':65B,97C 'authent':94C 'belong':121C 'browser':59B 'check':39B 'connect':3A,21B,28B,76C 'control':67B,99C,138C 'could':84C,129C 'cross':104C 'cross-sit':103C 'csrf':5A 'cve':12A,15A 'due':101C 'flow':112C 'forc':55B,90C 'forgeri':107C 'host':25B 'ibm':1A,19B,26B,74C 'ibm-api-connect':18B 'infrastructur':22B 'link':69B,130C 'log':61B 'login':4A,119C 'match':46B 'remot':87C 'request':51B,106C,127C 'respons':45B,120C 'self':24B 'self-host':23B 'session':73B,134C 'sign':7A,43B,110C 'sign-in':42B,109C 'site':105C 'suffici':115C 'user':8A,48B,92C,124C 'verifi':116C 'version':29B 'victim':57B,71B,132C","nicknames":[],"mitigations":[],"who_affected":"Teams that run IBM API Connect in the affected version ranges and expose its sign-in flow to browsers. The sources do not describe configuration details beyond the version ranges, so whether a given deployment is reachable depends on its setup. Installations outside the listed ranges are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["ibmapiconnect","infrastructure","medium","selfhosted"],"campaign_type":null,"search_a":"'-17369':14A,17A '-2026':13A,16A 'account':11A 'api':2A 'attack':10A 'connect':3A 'csrf':5A 'cve':12A,15A 'ibm':1A 'login':4A 'sign':7A 'user':8A","search_b":"'10.0.8.0':30B '10.0.8.12':32B '12.1.0.0':34B '12.1.1.2':36B 'account':68B 'api':20B,27B 'attack':53B,66B 'attacker-control':65B 'browser':59B 'check':39B 'connect':21B,28B 'control':67B 'forc':55B 'host':25B 'ibm':19B,26B 'ibm-api-connect':18B 'infrastructur':22B 'link':69B 'log':61B 'match':46B 'request':51B 'respons':45B 'self':24B 'self-host':23B 'session':73B 'sign':43B 'sign-in':42B 'user':48B 'version':29B 'victim':57B,71B","search_c":"'10.0.8.0':77C '10.0.8.12':79C '12.1.0.0':81C '12.1.1.2':83C 'account':100C,137C 'allow':85C 'api':75C 'attack':88C,98C,141C 'attacker-control':97C 'authent':94C 'belong':121C 'connect':76C 'control':99C,138C 'could':84C,129C 'cross':104C 'cross-sit':103C 'due':101C 'flow':112C 'forc':90C 'forgeri':107C 'ibm':74C 'link':130C 'login':119C 'remot':87C 'request':106C,127C 'respons':120C 'session':134C 'sign':110C 'sign-in':109C 'site':105C 'suffici':115C 'user':92C,124C 'verifi':116C 'victim':132C","first_public_at":"2026-11-07T05:18:49+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17369","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17369","severity":null,"published_at":"2026-11-07T05:18:49+00:00","modified_at":"2026-11-07T05:18:49+00:00","first_seen_at":"2026-11-07T05:46:05+00:00","fetched_at":"2026-11-07T05:46:05+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"}