7.5

CVE-2026-102497

Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Apache ≫ Xmlschema Version < 2.3.3
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.36% 0.278
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-674 Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

https://lists.apache.org/thread/1cj02tobjyhjqq723bvg78yxkqt1lk7k
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http://www.openwall.com/lists/oss-security/2026/09/29/17
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