The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service. Users are recom...
Vendor
org.apache.ws.xmlschema vulnerabilities
3 published CVES affecting org.apache.ws.xmlschema, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 3
- Critical
- 0
- High
- 3
- Medium
- 0
- Low
- 0
- Unscored
- 0
- CISA KEV
- 0
Products
Latest org.apache.ws.xmlschema CVEs
Newest publication first
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HighCVSS 7.5 EPSS 0.53%
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CVE-2026-102496 Apache XMLSchema: Denial of service through deeply nested schema structures
PublishedHighCVSS 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...
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HighCVSS 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.