UnratedApache Software Foundation

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

This security Apache Software Foundation advisory covers CVE-2026-49875 affecting Apache CXF.

CVE-2026-49875 Published Jun 12, 2026Updated by vendor Aug 7, 2026

CVE-2026-49875

Affected products & platforms

Apache Software FoundationUnclassified

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Summary

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 versions

Apache CXF 4.2.0 before 4.2.2
Apache CXF 4.0.0 before 4.1.7
Apache CXF before 3.6.12

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Fixed versions

4.2.2
4.1.7
3.6.12

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Official vendor advisoryofficial
Official advisory page fetched and parsed for the summary, affected/fixed versions and remediation guidance it provides.
Apache Software Foundation
CVE.org CNA recordCVE.org
Independent CNA record used for near-real-time discovery and missed-CVE reconciliation. Discovered from the machine-readable feed https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/delta.json; this link opens the CVE.org record for CVE-2026-49875 instead of the raw feed document.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-49875NVD CVE.org MITRE

Official resources

ASF Security — reporting & CVE process
Official documentation
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Apache project downloads (fixed releases)
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