CVE-2026-54225 json
Apache CXF: Denial of Service attack via large attachments
published 3mo ago modified 18d ago also EUVD-2026-53851
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Apache Software Foundation Apache CXF 3.6.12, 4.1.8, 4.2.3
Is CVE-2026-54225 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3mo ago
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Apache Software Foundation Apache CXF
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
lists.apache.org
/thread/h2bjqm6g58z0j6893qzh728kdtk1byfy
vendor-advisory, mailing-list
- openwall.com /lists/oss-security/2026/08/06/14
Sources
- CVE List CVE-2026-54225
- NVD CVE-2026-54225
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