What is GHSA-xw5h-cmh3-8j6j?

GHSA-xw5h-cmh3-8j6j is a security advisory published by GitHub Security Advisories with Critical severity. Apache CXF has Improper Restriction of XML External Entity Reference

Which CVE IDs does GHSA-xw5h-cmh3-8j6j cover?

GHSA-xw5h-cmh3-8j6j covers the following CVE IDs: CVE-2026-49875. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-xw5h-cmh3-8j6j?

GHSA-xw5h-cmh3-8j6j has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

Which products are affected by GHSA-xw5h-cmh3-8j6j?

GHSA-xw5h-cmh3-8j6j affects 2 products, including: maven/org.apache.cxf:cxf-core:\u003e= 4.2.0, \u003c 4.2.2; maven/org.apache.cxf:cxf-core:\u003c 4.1.7.

GHSA-xw5h-cmh3-8j6jCriticalCVSS 9.8

Apache CXF has Improper Restriction of XML External Entity Reference

Vendor

GitHub Security Advisories

Published

June 12, 2026

Last Modified

October 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-49875 →

📋 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, which fix this issue.

🎯 Affected products2

maven/org.apache.cxf:cxf-core:>= 4.2.0, < 4.2.2
maven/org.apache.cxf:cxf-core:< 4.1.7

🔗 References (10)

https://nvd.nist.gov/vuln/detail/CVE-2026-49875
https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gpsvyy79o
http://www.openwall.com/lists/oss-security/2026/06/11/2
https://access.redhat.com/security/cve/CVE-2026-49875
https://bugzilla.redhat.com/show_bug.cgi?id=2488309
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49875.json
https://access.redhat.com/errata/RHSA-2026:36839
https://access.redhat.com/errata/RHSA-2026:37390
https://cxf.apache.org/security-advisories.data/CVE-2026-49875.txt
https://github.com/advisories/GHSA-xw5h-cmh3-8j6j