Out-of-Band Entity Resolution Vulnerability in Apache CXF
CVE-2026-49875

6.5MEDIUM

Key Information:

Vendor

Apache
Status
Apache Cxf
Vendor
CVE Published:
12 June 2026

What is CVE-2026-49875?

Apache CXF is impacted by a vulnerability in the EndpointReferenceUtils and W3CMultiSchemaFactory classes, which fail to apply the necessary JAXP hardening configurations when constructing a SAXParserFactory. This oversight allows for potential out-of-band external entity resolution, posing a risk to systems that utilize these components. Users are advised to upgrade to versions 4.2.2 or 4.1.7 to mitigate this security issue.

Affected Version(s)

Apache CXF 4.2.0 < 4.2.2

Apache CXF 0 < 4.1.7

References

https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gp...
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Venkatraman Kumar (r3dw0lfsec), Securin
.