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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-14338

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
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Fixed versions
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CVEs
CVE-2020-14338
Confirmed fixed CVEs
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Updated in this feed
1 Nov 2026, 05:37 UTC · Revision 1

Source evidence

CVE-2020-14338

core-osv · Original source

Published 17 Sept 2020, 15:15 UTC

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"
}