Apache CXF <4.2.2 OOB External Entity via SAXParserFactory
CVE-2026-49875 Published on June 12, 2026

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

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-49875 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Type

What is a XXE Vulnerability?

The software processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

CVE-2026-49875 has been classified to as a XXE vulnerability or weakness.


Products Associated with CVE-2026-49875

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-49875 are published in these products:

Apache CXF
 
Red Hat Camel Quarkus
 
Red Hat Camel Spring Boot
 
Red Hat Jboss Fuse
 
Red Hat Jboss Enterprise Application Platform
 
Red Hat Jbosseapxp
 
Red Hat Jboss Enterprise Web Server
 
Red Hat Single Sign On
 
Red Hat Apache Camel Quarkus
 
Red Hat Apache Camel Spring Boot
 

Affected Versions

Apache Software Foundation Apache CXF: Red Hat Build of Apache Camel 4.18 for Quarkus 3.33: Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16: Red Hat build of Apache Camel 4 for Quarkus 3: Red Hat Fuse 7: Red Hat JBoss Enterprise Application Platform 7: Red Hat JBoss Enterprise Application Platform 8: Red Hat JBoss Enterprise Application Platform Expansion Pack: Red Hat JBoss Web Server 5: Red Hat Single Sign-On 7:

Exploit Probability

EPSS
0.42%
Percentile
33.26%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.