Bug 2511981 (CVE-2026-65432)

Summary:	CVE-2026-65432 Apache CXF: Apache CXF: XML External Entity (XXE) vulnerability via WSDL/XSD import parsing
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anujha, aschwart, asoldano, aszczucz, bbaranow, bmaxwell, boliveir, bstansbe, csutherl, dlofthou, drichtar, dsoumis, fmariani, fmongiar, gmalinko, istudens, ivassile, iweiss, janstey, jclere, jnethert, jwon, mcarlett, mosmerov, mposolda, msvehla, nwallace, pberan, pdelbell, pesilva, pjindal, plodge, pmackay, rmartinc, rmaucher, rstancel, rstepani, ssilvert, sthorger, szappis, tcunning, thjenkin, vdosoudi, vmuzikar, yfang
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in Apache CXF. The framework's initial processing of a Web Services Description Language (WSDL) document disables XML DTDs (Document Type Definitions) and external entities. However, any WSDL or XML Schema Definition (XSD) documents imported by the top-level WSDL are processed by a different component, WSDL4J, which does not apply these same security protections. This oversight allows an attacker to exploit XML External Entity (XXE) vulnerabilities through imported WSDL/XSD content, potentially leading to information disclosure or denial of service.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2026-08-06 11:11:23 UTC

Apache CXF reads a top-level WSDL through its hardened StaxUtils path, which disables XML DTDs and external entities. However, any <wsdl:import> or <xsd:import> referenced from that top-level WSDL is handed off to WSDL4J, which does not disable DOCTYPE declarations or external entities. As a result, the protections applied to the top-level document do not extend to imported documents, leaving imported WSDL/XSD content vulnerable to XML External Entity (XXE) attacks. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

Comment 1 Jon Orris 2026-10-15 23:25:02 UTC

This issue has been addressed in the following products:

  Red Hat Build of Apache Camel 4.18 for Quarkus 3.33

Via RHSA-2026:83670 https://access.redhat.com/errata/RHSA-2026:83670