CVE-2026-44417 Apache Software Foundation CVE debrief

Who should care

Apache CXF users, particularly those who allow untrusted users to configure JMS, should be aware of this vulnerability and take immediate action to upgrade to a patched version. Additionally, security teams and administrators responsible for Apache CXF deployments should prioritize this vulnerability and ensure that affected systems are updated. Red Hat and other downstream users should also review their deployments and apply necessary patches.

Technical summary

The vulnerability in Apache CXF arises from an incomplete fix for CVE-2025-48913, which allowed untrusted users to configure JMS, potentially leading to remote code execution. The issue has a CVSS score of 7.5 and is considered high-severity. The CVSS vector is CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H, indicating a high impact on confidentiality, integrity, and availability. The vulnerability is tracked under CWE-20 (Improper Input Validation) and CWE-15 (External Control of System or Configuration Setting).

Defensive priority

This vulnerability should be prioritized due to its high-severity CVSS score and potential for remote code execution. Apache CXF users should immediately upgrade to versions 4.2.1, 4.1.6, or 3.6.11 to mitigate the vulnerability.

Recommended defensive actions

• Upgrade Apache CXF to versions 4.2.1, 4.1.6, or 3.6.11
• Review and update JMS configurations to ensure only trusted users have access
• Monitor Apache CXF deployments for any suspicious activity
• Apply necessary patches and updates to affected systems
• Review and update security policies and procedures to address this vulnerability

Evidence notes

The CVE-2026-44417 vulnerability was published on May 22, 2026, and last modified on June 30, 2026. The vulnerability has a CVSS score of 7.5 and is considered high-severity. The fix for CVE-2025-48913 was incomplete, allowing another path in the code to potentially lead to code execution capabilities. Users are recommended to upgrade to versions 4.2.1, 4.1.6, or 3.6.11 to fix this issue.

Official resources