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Vulnerability · Published Jun 12, 2026 · Assigned by apache

CVE-2026-49875Apache CXF: XML External Entity (XXE) Injection in W3CMultiSchemaFactory and EndpointReferenceUtils

Medium 6.5

In plain English

A medium-severity XML external entity in Apache CXF from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 54.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Apache CXF's EndpointReferenceUtils and W3CMultiSchemaFactory classes construct a SAXParserFactory without the necessary JAXP hardening configurations, enabling out-of-band (OOB) external entity resolution. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Mavenorg.apache.cxf:cxf-core4.2.2GHSA-xw5h-cmh3-8j6j
Mavenorg.apache.cxf:cxf-core4.1.7GHSA-xw5h-cmh3-8j6j
Mavenorg.apache.cxf:cxf-core3.6.12GHSA-xw5h-cmh3-8j6j

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache CXF 4.2.0 – before 4.2.24.0.0 – before 4.1.70 – before 3.6.12

Weakness: CWE-611 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References