CVE-2026-54225: CWE-770 Allocation of Resources Without Limits or Throttling in Apache Software Foundation Apache CXF
Apache CXF versions prior to 4.2.3, 4.1.8, and 3.6.12 do not impose a default limit on the maximum attachment size, which can lead to denial of service if an attacker sends excessively large attachments. The issue is addressed by setting a default attachment size limit of 50 MB in the fixed versions.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-54225 in Apache CXF involves the lack of a default limit on the maximum attachment size, controlled by the "attachment-max-size" setting. Versions before 4.2.3, 4.1.8, and 3.6.12 do not enforce any default size limit, allowing resource exhaustion through large attachments, potentially causing denial of service. The Apache Software Foundation fixed this by introducing a default 50 MB attachment size limit in the specified versions.
Potential Impact
Without a default attachment size limit, Apache CXF installations that do not explicitly configure this setting are vulnerable to denial of service attacks via resource exhaustion. Attackers can send very large attachments to consume server resources, potentially disrupting service availability.
Mitigation Recommendations
Users should upgrade to Apache CXF versions 4.2.3, 4.1.8, or 3.6.12 or later, where a default attachment size limit of 50 MB is imposed. Setting the "attachment-max-size" configuration explicitly to a reasonable limit also mitigates the risk. Patch status is not explicitly confirmed in the advisory, but the fixed versions are clearly stated.
CVE-2026-54225: CWE-770 Allocation of Resources Without Limits or Throttling in Apache Software Foundation Apache CXF
Description
Apache CXF versions prior to 4.2.3, 4.1.8, and 3.6.12 do not impose a default limit on the maximum attachment size, which can lead to denial of service if an attacker sends excessively large attachments. The issue is addressed by setting a default attachment size limit of 50 MB in the fixed versions.
Affected software
pkg:maven/Apache Software Foundation/org.apache.cxf:cxf-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-54225 in Apache CXF involves the lack of a default limit on the maximum attachment size, controlled by the "attachment-max-size" setting. Versions before 4.2.3, 4.1.8, and 3.6.12 do not enforce any default size limit, allowing resource exhaustion through large attachments, potentially causing denial of service. The Apache Software Foundation fixed this by introducing a default 50 MB attachment size limit in the specified versions.
Potential Impact
Without a default attachment size limit, Apache CXF installations that do not explicitly configure this setting are vulnerable to denial of service attacks via resource exhaustion. Attackers can send very large attachments to consume server resources, potentially disrupting service availability.
Mitigation Recommendations
Users should upgrade to Apache CXF versions 4.2.3, 4.1.8, or 3.6.12 or later, where a default attachment size limit of 50 MB is imposed. Setting the "attachment-max-size" configuration explicitly to a reasonable limit also mitigates the risk. Patch status is not explicitly confirmed in the advisory, but the fixed versions are clearly stated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-12T12:43:10.607Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a746c04bf8831d5399ece98
Added to database: 08/06/2026, 11:12:04 UTC
Last enriched: 08/06/2026, 11:31:42 UTC
Last updated: 08/06/2026, 11:31:42 UTC
Views: 3
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