CVE-2026-44618: cxf XXE — Fix

Description

Insecure XML parser configuration in Apache CXF's WS-Transfer module may allow attackers to perform XXE attacks. Users are recommended to upgrade to versions 4.2.1, 4.1.6 or 3.6.11, which fix this issue.

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CVSS v3.1 Score

5.3

MEDIUM

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

EPSS — Exploit Prediction

0.0042

Probability of exploitation

0.33%

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	< 3.6.11
apache	cxf	4.0.0 — 4.1.6
apache	cxf	All

References

Advisories & Patches

https://lists.apache.org/thread/c7vb015f8ljmjl44030mn0yfq71f7sd7

Other References

http://www.openwall.com/lists/oss-security/2026/05/22/8

Frequently Asked Questions

What is CVE-2026-44618? +

Insecure XML parser configuration in Apache CXF's WS-Transfer module may allow attackers to perform XXE attacks. Users are recommended to upgrade to versions 4.2.1, 4.1.6 or 3.6.11, which fix this issue. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-44618? +

CVE-2026-44618 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0042, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-44618? +

CVE-2026-44618 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-2026-44618? +

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.

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