Bug 2488309 (CVE-2026-49875)

Summary: CVE-2026-49875 cxf: org.apache.cxf/cxf-core: Apache CXF: Information disclosure via out-of-band external entity resolution due to missing JAXP hardening
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: 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, pdelbell, pesilva, pjindal, plodge, pmackay, rmartinc, rmaucher, rstancel, rstepani, ssilvert, sthorger, szappis, tcunning, thjenkin, vdosoudi, vmuzikar, yfang
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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A flaw was found in Apache CXF. The EndpointReferenceUtils and W3CMultiSchemaFactory classes within Apache CXF construct a SAXParserFactory without proper security configurations. This oversight enables out-of-band (OOB) external entity resolution, a type of XML External Entity (XXE) vulnerability. A remote attacker could exploit this to disclose sensitive information from the affected system.
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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 2026-06-12 10:01:46 UTC
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, which fix this issue.