Review reviewCritical

CVE-2026-49875

Apache Software Foundation Apache CXF, Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16, Red Hat Build of Apache Camel 4.18 for Quarkus 3.33

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.

CVSS: 9.8
EPSS: 0.53%
CISA KEV: Not listed
Published: 2026.06.12

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.53%

Technical severityCVSS 9.8

Vulnerability overview

Affected product and versions

Product: Apache Software Foundation Apache CXF, Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16, Red Hat Build of Apache Camel 4.18 for Quarkus 3.33
Affected versions: >= 4.2.0 < 4.2.2, < 4.1.7
Fixed versions: 4.1.7, 4.2.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Apache Software Foundation Apache CXF, Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16, Red Hat Build of Apache Camel 4.18 for Quarkus 3.33 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-611