Description
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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache XMLSchema | < 2.3.3 |
References
- https://lists.apache.org/thread/l339q3oldm0cd2lph4b6f93fd07x9g6sMailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/09/29/15Mailing List, Third Party Advisory
Timeline
- Published
- Sep 29, 2026
- Last modified
- Oct 6, 2026
- NVD status
- Analyzed