org.apache.ws.xmlschema/xmlschema-core vulnerabilities

Latest org.apache.ws.xmlschema/xmlschema-core CVEs

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1. CVE-2026-102496 Apache XMLSchema: Denial of service through deeply nested schema structures

   Published 2026-09-29

   High·CVSS 7.5 EPSS 0.53%

   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. Users are recommended to upgrade to version 2.3.3, which fixes thi...

2. CVE-2026-102495 Apache XMLSchema: Denial of service through unbounded recursion when resolving schema imports and includes

   Published 2026-09-29

   High·CVSS 7.5 EPSS 0.53%

   Apache XmlSchema doesn't limit how deeply schema imports and includes can be nested, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service. Users are recommended to upgrade to version 2.3.3, which fixes this issue.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.