Security advisory
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. This flaw affects all Xerces JBoss versions before 2.12.0.SP3.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-14338
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:37 UTC · Revision 1
Source evidence
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. This flaw affects all Xerces JBoss versions before 2.12.0.SP3.
osv:CVE-2020-14338
Complete source record
{
"id": "5eb9f3b8fb83566433fbc0cd33ce9b4fb6c0b2d1e53ce05fe1b3e418680f6d4d",
"url": "https://osv.dev/vulnerability/CVE-2020-14338",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-14338",
"summary": "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. This flaw affects all Xerces JBoss versions before 2.12.0.SP3.",
"evidence": "osv:CVE-2020-14338",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-14338",
"aliases": [
"CVE-2020-14338",
"GHSA-w4jq-qh47-hvjq"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/jboss/xerces",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "9280cfa16f0f7fcf8eb4c3e01d277bc33bc5253c"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "2.12.0.SP3"
}
],
"source": "DESCRIPTION"
}
]
}
}
],
"versions": [
"jboss-2.11.0.SP6",
"jboss-2.12.0.SP02",
"jboss-2.12.0.SP01"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14338.json"
}
}
],
"modified": "2026-10-24T10:30:31.320526121Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/rf96c5afb26b596b4b97883aa90b6c0b0fc4c26aaeea7123c21912103%40%3Cj-users.xerces.apache.org%3E",
"https://bugzilla.redhat.com/show_bug.cgi?id=1860054"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:redhat:xerces:*:*:*:*:*:*:*:*"
],
"vendor_product": "redhat:xerces",
"extracted_events": [
{
"range": [
{
"fixed": "2.12.0"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:a:redhat:xerces:2.12.0:sp1:*:*:*:*:*:*",
"cpe:2.3:a:redhat:xerces:2.12.0:sp2:*:*:*:*:*:*"
],
"vendor_product": "redhat:xerces",
"extracted_events": [
{
"range": [
{
"introduced": "2.12.0-sp1"
},
{
"last_affected": "2.12.0-sp1"
},
{
"introduced": "2.12.0-sp2"
},
{
"last_affected": "2.12.0-sp2"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-14338",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 432770,
"published_at": "2020-09-17T15:15:13.143+00:00"
}