Description
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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache CXF | >= 4.2.0, < 4.2.2; >= 4.0.0, < 4.1.7; < 3.6.12 |
References
- https://lists.apache.org/thread/24zb7cqcvykhwm0j797dmdq25s61mj93Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/06/11/12Mailing List, Third Party Advisory
Timeline
- Published
- Jun 12, 2026
- Last modified
- Nov 5, 2026
- NVD status
- Analyzed