{"id":"CVE-2026-17326","kind":"vulnerability","aliases":["CVE-2026-17326"],"related":[],"title":"IBM API Connect: authenticated remote attacker can bypass security restrictions","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 bypass security restrictions due to improper authentication.","summary":"IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 have improper authentication that lets a logged-in remote user bypass security restrictions. The sources do not say what restrictions are bypassed or what the attacker gains beyond that.","severity":"high","cvss":8.1,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"IBM API Connect","fixed":["12.1.1.3"],"affected":">= 12.1.0.0, <= 12.1.1.2","ecosystem":"vendor"},{"name":"IBM API Connect 10.0.8","fixed":["10.0.8.13"],"affected":">= 10.0.8.0, <= 10.0.8.12","ecosystem":"vendor"}],"ecosystems":[],"tags":["api-gateway","authenticated","ibm-api-connect","infrastructure","self-hosted"],"not_affected_if":[],"how_to_check":"Check your API Connect version (management/gateway/portal). Affected: 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2. Fixed in 12.1.1.3 (12.1 line).","fix":"Upgrade 12.1.x to v12.1.1.3 (IBM bulletin). For 10.0.8.x, the CVE record says upgrade to 10.0.8.13; not confirmed on an IBM page.","status":"open","published_at":"2026-11-07T05:18:42+00:00","first_seen_at":"2026-11-07T05:46:03+00:00","triaged_at":"2026-11-07T05:50:29+00:00","updated_at":"2026-11-07T06:17:27+00:00","category":"infrastructure","confidence":0.75,"triage":{"at":"2026-11-07T05:50:29Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"IBM API Connect: authenticated remote attacker can bypass security restrictions","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 have improper authentication that lets a logged-in remote user bypass security restrictions. The sources do not say what restrictions are bypassed or what the attacker gains beyond that.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["ibm-api-connect","api-gateway"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"authenticated user bypasses security restrictions on the API gateway","analyst_note":"Find IBM's security bulletin for CVE-2026-17326 to confirm the restrictions bypassed and the fixed version; the NVD entry gives only the ranges.","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":[],"who_is_affected":"Organizations running IBM API Connect in the affected version ranges. The sources do not say which configurations or roles are exposed, so unknown.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000686,"input_tokens":4223,"output_tokens":527,"severity_before":"high"},"analyst_status":"done","analyst_note":"Find IBM's security bulletin for CVE-2026-17326 to confirm the restrictions bypassed and the fixed version; the NVD entry gives only the ranges.","search":"'-17326':13A,16A '-2026':12A,15A '10.0.8':23A '10.0.8.0':40B,79C '10.0.8.12':42B,81C '12.1.0.0':44B,83C '12.1.1.2':46B,85C 'allow':87C 'api':2A,18A,21A,25B,30B,37B,77C 'api-gateway':24B 'attack':6A,73B,91C 'authent':4A,27B,49B,90C,99C 'beyond':75B 'bypass':8A,58B,69B,93C 'connect':3A,19A,22A,31B,38B,78C 'could':86C 'cve':11A,14A 'due':96C 'gain':74B 'gateway':26B 'host':35B 'ibm':1A,17A,20A,29B,36B,76C 'ibm-api-connect':28B 'improp':48B,98C 'infrastructur':32B 'let':51B 'log':54B 'logged-in':53B 'remot':5A,56B,89C 'restrict':10A,60B,67B,95C 'say':65B 'secur':9A,59B,94C 'self':34B 'self-host':33B 'sourc':62B 'user':57B 'version':39B","nicknames":[],"mitigations":[],"who_affected":"Teams running self-managed IBM API Connect 10.0.8.0-10.0.8.12 or 12.1.0.0-12.1.1.2. An attacker needs a valid login on the instance (low privileges, network access). IBM says only that security restrictions can be bypassed; it gives no detail on which ones. Teams not running API Connect, or already on 12.1.1.3 or later, can skip it.","tier":"B","verified":{"fix":{"at":"2026-11-07T06:17:27Z","by":"analyst","doc":"https://www.ibm.com/support/pages/node/7290205","run_id":2042}},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["apiconnect","apiconnect1008","ibmapiconnect","ibmapiconnect1008"],"ptokens":["10","api","connect","ibm"],"labels":["apigateway","authenticated","high","ibmapiconnect","infrastructure","selfhosted"],"campaign_type":null,"search_a":"'-17326':13A,16A '-2026':12A,15A '10.0.8':23A 'api':2A,18A,21A 'attack':6A 'authent':4A 'bypass':8A 'connect':3A,19A,22A 'cve':11A,14A 'ibm':1A,17A,20A 'remot':5A 'restrict':10A 'secur':9A","search_b":"'10.0.8.0':40B '10.0.8.12':42B '12.1.0.0':44B '12.1.1.2':46B 'api':25B,30B,37B 'api-gateway':24B 'attack':73B 'authent':27B,49B 'beyond':75B 'bypass':58B,69B 'connect':31B,38B 'gain':74B 'gateway':26B 'host':35B 'ibm':29B,36B 'ibm-api-connect':28B 'improp':48B 'infrastructur':32B 'let':51B 'log':54B 'logged-in':53B 'remot':56B 'restrict':60B,67B 'say':65B 'secur':59B 'self':34B 'self-host':33B 'sourc':62B 'user':57B 'version':39B","search_c":"'10.0.8.0':79C '10.0.8.12':81C '12.1.0.0':83C '12.1.1.2':85C 'allow':87C 'api':77C 'attack':91C 'authent':90C,99C 'bypass':93C 'connect':78C 'could':86C 'due':96C 'ibm':76C 'improp':98C 'remot':89C 'restrict':95C 'secur':94C","first_public_at":"2026-11-07T05:18:42+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cvss_by":"psirt@us.ibm.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-17326","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-17326","severity":null,"published_at":"2026-11-07T05:18:42+00:00","modified_at":"2026-11-07T05:18:42+00:00","first_seen_at":"2026-11-07T05:46:03+00:00","fetched_at":"2026-11-07T05:46:03+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-17326:2042","url":"https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","severity":null,"published_at":"2026-11-07T06:17:27+00:00","modified_at":"2026-11-07T06:17:27+00:00","first_seen_at":"2026-11-07T06:17:27+00:00","fetched_at":"2026-11-07T06:17:27+00:00","note":"IBM bulletin (-39) lists CVE-2026-17326 (CWE-287, CVSS 8.1, C:H/I:H) as fixed in v12.1.1.3. IBM gives no detail on which restrictions are bypassed. 10.0.8.13 fix for the 10.0.8 line comes only from the CVE record's solution text (OpenCVE copy), not read on an IBM page, so only the 12.1 fix is verified. No exploitation or PoC seen.","cites":["https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-api-connect-39","https://www.ibm.com/support/pages/node/7290205"]}],"documents":[{"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},{"id":93155,"url":"https://www.ibm.com/support/pages/node/7290205","title":"IBM API Connect v12.1.1.3 is now available","kind":"release","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"fix","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"}