{"containers":{"cna":{"affected":[{"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:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","product":"API Connect","vendor":"IBM","versions":[{"lessThanOrEqual":"12.1.1.2","status":"affected","version":"12.1.0.0","versionType":"semver"},{"lessThanOrEqual":"10.0.8.12","status":"affected","version":"10.0.8.0","versionType":"semver"}]}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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>"}],"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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.6,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","description":"CWE-1333 Inefficient regular expression complexity","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-11-07T04:56:45.212Z","orgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","shortName":"ibm"},"references":[{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7291753"},{"tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7292434"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","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>"}],"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"}],"source":{"discovery":"UNKNOWN"},"title":"IBM API Connect Denial of Service","x_gcve":[{"recordType":"advisory","vulnId":"CVE-2026-18535"}],"x_generator":{"engine":"Vulnogram 1.0.5"}}},"cveMetadata":{"assignerOrgId":"9a959283-ebb5-44b6-b705-dcc2bbced522","assignerShortName":"ibm","cveId":"CVE-2026-18535","datePublished":"2026-11-07T04:56:45.212Z","dateReserved":"2026-07-31T20:31:32.104Z","dateUpdated":"2026-11-07T04:56:45.212Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2","x_gcve":[{"extensions":{"bcp-05-x-01":{"ai_annotations":[{"ai_level":"generated","description":"VLAI severity classification was generated by Vulnerability-Lookup's /vlai/severity-classification API endpoint based on vulnerability description text.","field_name":"x_gcve.extensions.vlai-severity-enrichment","models":[{"gna_source":1,"identifier":"vlai-severity-classification","name":"VLAI Severity","provider":"CIRCL","version":"fc530b2263ef5a89ae4c75ffcbf6b4d878d44b94"}],"review_status":"none","scope":"field","tags":["ai-computer-assisted:assistance-level=\"ai-generated\"","ai-computer-assisted:review-level=\"unreviewed\""]}]},"vlai-severity-enrichment":{"confidence":0.5409843325614929,"generated_at":"2026-11-07T05:27:39+00:00","severity":"Medium","vulnerability_id":"CVE-2026-18535"}}}]}