{"id":"CVE-2026-102496","summary":"Apache XMLSchema: Denial of service through deeply nested schema structures","details":"Apache XmlSchema doesn't limit how deeply schema structures can be nested when it builds its schema model, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service.\nUsers are recommended to upgrade to version 2.3.3, which fixes this issue.","modified":"2026-10-08T02:49:43.266108903Z","published":"2026-09-29T11:34:04.111Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102496.json","unresolved_ranges":[{"extracted_events":[{"fixed":"2.3.3"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"apache"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/09/29/16"},{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102496.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/9z1vg8wmvwpfw748fb2nb55w4hgbnxol"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102496"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/ws-xmlschema","events":[{"introduced":"0"},{"fixed":"abc808eeb7190776f19132c7947f9c8c8570627c"}],"database_specific":{"cpe":"cpe:2.3:a:apache:xmlschema:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.3.3"}],"source":"CPE_RANGE"}}],"versions":["xmlschema-2.3.2","xmlschema-2.3.1","xmlschema-2.3.0","xmlschema-2.2.5"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102496.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}