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.

CVSS v3.1 Score

9.8

CRITICAL

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

EPSS — Exploit Prediction

0.0049

Probability of exploitation

0.38%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-611 CWE-611

Affected Products

Vendor	Product	Versions
apache	cxf	< 4.1.7
apache	cxf	4.2.0 — 4.2.2

References

Advisories & Patches

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

Other References

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

Frequently Asked Questions

What is CVE-2026-49875? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-49875? +

CVE-2026-49875 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0049, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-49875? +

CVE-2026-49875 affects products from apache, specifically: cxf. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-49875? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-27136

LocalS3 is an Amazon S3 mock service for testing and local development. Prior to version 1.21, the LocalS3 service's bucket …

CVE-2025-47778

Sulu is an open-source PHP content management system based on the Symfony framework. Starting in versions 2.5.21, 2.6.5, and 3.0.0-alpha1, …

CVE-2025-4639

CWE-611 Improper Restriction of XML External Entity Reference in the getDocumentBuilder() method of WebDav servlet in Peergos. This issue affects …

CVE-2025-4641

Improper Restriction of XML External Entity Reference vulnerability in bonigarcia webdrivermanager WebDriverManager on Windows, MacOS, Linux (XML parsing components modules) …

CVE-2025-48882

PHPOffice Math is a library that provides a set of classes to manipulate different formula file formats. Prior to version …

CVE-2025-47293

PowSyBl (Power System Blocks) is a framework to build power system oriented software. Prior to version 6.7.2, in certain places, …