Improper Input Validation in Xerces
A flaw was found in Wildfly's implementation of Xerces, specifically in the way the XMLSchemaValidator class in the JAXP component of Wildfly enforced the "use-grammar-pool-only" feature. This flaw allows a specially-crafted XML file to manipulate the validation process in certain cases. This issue is the same flaw as CVE-2020-14621, which affected OpenJDK, and uses a similar code. All xerces jboss versions before 2.12.0.SP3.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | xerces:xercesImpl | < 2.12.0.sp3 | 2.12.0.sp3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-20- Platform
- Java / Kotlin (Maven)
- Package
xerces:xercesImpl- Disclosed
- 15.02.2022
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - GHSA-w4jq-qh47-hvjq - CC BY 4.0
Vulnerability history: xerces:xercesImpl
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 06.2020 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 3
Disclosures per year
- 2020: 2
- 2021: 0
- 2022: 3
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Improper Input Validation in Xerces this entry
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