Resource exhaustion in Apache Cxf
CVE-2026-54225
Apache CXF allows to control the maximum attachment size via the "attachment-max-size". Prior to Apache CXF 4.2.3 and 4.1.8 and 3.6.12, there was no default placed on this size, meaning that a denial of service attack is possible if the user doesn't explicitly set the limit. Users should update to Apache CXF 4.2.3 or 4.1.8 or 3.6.12 which fixes this problem by imposing a default attachment size limit of 50mb.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (54.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Apache Cxf
- Apache Software Foundation Cxf — versions 4.2.0, 4.0.0, 0
Weakness classification (CWE)
References
- lists.apache.org/thread/h2bjqm6g58z0j6893qzh728kdtk1byfy (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2026-54225?
- CVE-2026-54225 is a high-severity vulnerability in Apache Cxf, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-06.
- How severe is CVE-2026-54225?
- High severity. CVSS v3 base score is 7.5 out of 10.