{"affected":[{"defaultStatus":"unaffected","product":"API Connect","source":"CNA: ibm","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"}]}],"cveId":"CVE-2026-18535","cwes":["CWE-1333"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":9.6,"severity":"critical","source":"CNA: ibm","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H","version":"3.1"},{"score":9.6,"severity":"critical","source":"NVD: psirt@us.ibm.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H","version":"3.1"}],"modifiedAt":1794028739300,"publishedAt":1794027405212,"references":[{"source":"CNA: ibm","tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7291753"},{"source":"CNA: ibm","tags":["vendor-advisory","patch"],"url":"https://www.ibm.com/support/pages/node/7292434"},{"source":"psirt@us.ibm.com","tags":[],"url":"https://www.ibm.com/support/pages/node/7291753"},{"source":"psirt@us.ibm.com","tags":[],"url":"https://www.ibm.com/support/pages/node/7292434"}],"remediation":[{"kind":"fix","source":"CNA: ibm","text":"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"},{"kind":"fix","source":"CNA: ibm","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.ibm.com/support/pages/node/7291753"},{"kind":"fix","source":"CNA: ibm","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://www.ibm.com/support/pages/node/7292434"}],"revision":"f6df9a9f6a23a1549fe10b1170ca437bffe25f5455cc89c8bb8477910502e543","sources":[{"modifiedAt":1794027405212,"name":"CNA: ibm","retrievedAt":1794028394519,"url":"https://www.cve.org/CVERecord?id=CVE-2026-18535"},{"modifiedAt":1794028739300,"name":"NVD","retrievedAt":1794032226666,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18535"}],"ssvc":null,"status":"published","title":"IBM API Connect Denial of Service","updatedAt":1794032226666}