CVE-2026-102497
UnknownSummary
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 recommended to upgrade to version 2.3.3.
Risk Assessment
An attacker could exploit this vulnerability to cause a denial of service, potentially disrupting applications using Apache XmlSchema.
Recommendation
Upgrade Apache XmlSchema to version 2.3.3, which fixes the issue.
Other vulnerabilities in Apache XmlSchema
See all- CVE-2026-102496Unknown
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.
- CVE-2026-102495Unknown
Apache XmlSchema does not 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. The issue is fixed in version 2.3.3.
Original NVD description (English source)
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 recommended to upgrade to version 2.3.3, which fixes this issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS