CVE-2026-50645

There is no restriction on the amount of attachment headers that a message can contain when being deserialized by Apache CXF, which can lead to uncontrolled resource consumption or a denial of service attack. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue by imposing a maximum default of 500 attachments per message.

Score

CVSS 3.1 7.5 High

Status

Modified - security@apache.org

Published

2026-06-12

Last modified

2026-10-26

Weaknesses

CWE-400

Affected products

• Cxf (Apache)
• Apache Cxf (Apache Software Foundation)

References

• https://lists.apache.org/thread/24zb7cqcvykhwm0j797dmdq25s61mj93
• http://www.openwall.com/lists/oss-security/2026/06/11/12