{"cvss":9.1,"datePublished":"2026-08-06T15:16:54.190","dateUpdated":"2026-10-24T16:10:00.153","description":"A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function.\n\nUsers are recommended to upgrade to version 1.6.4, which fixes this issue.","id":"CVE-2026-32327","raw":{"affected":[{"affectedData":[{"defaultStatus":"unaffected","packageName":"APR-util","product":"Apache Portable Runtime Utility","vendor":"Apache Software Foundation","versions":[{"lessThanOrEqual":"1.6.3","status":"affected","version":"0","versionType":"semver"}]}],"source":"security@apache.org"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:apache:apr-util:*:*:*:*:*:*:*:*","matchCriteriaId":"92873888-3F9F-45E0-930E-D06B5648DC2C","versionEndExcluding":"1.6.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which parses XML from untrusted sources and uses the apr_xml_quote_elem() function.\n\nUsers are recommended to upgrade to version 1.6.4, which fixes this issue."},{"lang":"es","value":"Un error en APR-util versión 1.6.3 (y anteriores) permite un ataque de recursión de pila contra cualquier consumidor de biblioteca que analiza XML de fuentes no confiables y utiliza la función apr_xml_quote_elem().\n\nSe recomienda a los usuarios actualizar a la versión 1.6.4, que corrige este problema."}],"id":"CVE-2026-32327","lastModified":"2026-10-24T16:10:00.153","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":5.2,"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-32327","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-08-06T17:46:05.943190Z","version":"2.0.3"}}]},"published":"2026-08-06T15:16:54.190","references":[{"source":"security@apache.org","tags":["Mailing List","Vendor Advisory"],"url":"https://lists.apache.org/thread/hq27vj8yfno9tkwv0fpj6jksfzgxvth1"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Mailing List","Third Party Advisory"],"url":"http://www.openwall.com/lists/oss-security/2026/08/06/9"}],"sourceIdentifier":"security@apache.org","vulnStatus":"Analyzed","weaknesses":[{"description":[{"lang":"en","value":"CWE-674"}],"source":"security@apache.org","type":"Secondary"}]},"severity":"CRITICAL","source":"nvd","title":"A bug in APR-util version 1.6.3 (and earlier) allows a stack recursion attack against any library consumer which pars..."}