{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18535","assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","state":"PUBLISHED","assignerShortName":"ibm","dateReserved":"2026-07-31T20:31:32.104Z","datePublished":"2026-11-07T04:56:45.212Z","dateUpdated":"2026-11-07T04:56:45.212Z"},"containers":{"cna":{"providerMetadata":{"orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm","dateUpdated":"2026-11-07T04:56:45.212Z"},"title":"IBM API Connect Denial of Service","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-1333","description":"CWE-1333 Inefficient regular expression complexity","type":"CWE"}]}],"affected":[{"vendor":"IBM","product":"API Connect","versions":[{"status":"affected","version":"12.1.0.0","lessThanOrEqual":"12.1.1.2","versionType":"semver"},{"status":"affected","version":"10.0.8.0","lessThanOrEqual":"10.0.8.12","versionType":"semver"}],"defaultStatus":"unaffected","cpes":["cpe:2.3:a:ibm:api_connect:12.1.0.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:api_connect:12.1.1.2:*:*:*:*:*:*:*","cpe:2.3:a:ibm:api_connect:10.0.8.0:*:*:*:*:*:*:*","cpe:2.3:a:ibm:api_connect:10.0.8.12:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 are vulnerable to a Regular Expression Denial of Service (ReDoS) attack and to improper neutralisation of wildcard query operators.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 are vulnerable to a Regular Expression Denial of Service (ReDoS) attack and to improper neutralisation of wildcard query operators.</p>"}]}],"references":[{"url":"https://www.ibm.com/support/pages/node/7291753","tags":["vendor-advisory","patch"]},{"url":"https://www.ibm.com/support/pages/node/7292434","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.6,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H"}}],"solutions":[{"lang":"en","value":"IBM strongly recommends addressing the vulnerability now by upgrading to v12.1.1.3\nFix Central Link:  https://www.ibm.com/support/pages/node/7290205 \n\n\n\nIBM strongly recommends addressing the vulnerability now by upgrading to 10.0.8.13\n\n\n\nFix Central Link: https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EWebSphere&product=ibm/WebSphere/IBM+API+Connect&release=10.0.8.12&platform=All&function=all","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>IBM strongly recommends addressing the vulnerability now by upgrading to v12.1.1.3<br>Fix Central Link: <a href=\"https://www.ibm.com/support/pages/node/7290205\" rel=\"nofollow\">https://www.ibm.com/support/pages/node/7290205</a></p><p>IBM strongly recommends addressing the vulnerability now by upgrading to 10.0.8.13</p><p>Fix Central Link:<a href=\"https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EWebSphere&amp;product=ibm/WebSphere/IBM+API+Connect&amp;release=10.0.8.12&amp;platform=All&amp;function=all\" rel=\"nofollow\">https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm%7EWebSphere&amp;product=ibm/WebSphere/IBM+API+Connect&amp;release=10.0.8.12&amp;platform=All&amp;function=all</a></p>"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}