CVE-2026-49875

CRITICAL

Apache CXF: XML External Entity (XXE) Injection in W3CMultiSchemaFactory and EndpointReferenceUtils

Title source: cna

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.

References (2)

Core 2

Core References

Vendor Advisory vendor-advisory

https://lists.apache.org/thread/3kb9w5bg90xcp06fccoz9k3gpsvyy79o

Mailing List

http://www.openwall.com/lists/oss-security/2026/06/11/2

Scores

CVSS v3 9.8

EPSS 0.0019

EPSS Percentile 8.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-611

Status published

Products (3)

apache/cxf < 4.1.7

Apache Software Foundation/Apache CXF < 4.1.7

Apache Software Foundation/Apache CXF 4.2.0 - 4.2.2

Published Jun 12, 2026

Tracked Since Jun 12, 2026