Unknown [CVE-2026-50645 +1] incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers
This security Apache Software Foundation advisory covers CVE-2026-50645 and CVE-2026-64958 affecting Apache CXF.
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Summary
An incomplete fix for CVE-2026-50645 means that it is still possible to perform a denial of service attack on Apache CXF by sending a message with many attachment headers. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
- Apache CXF 4.2.0 before 4.2.3
- Apache CXF 4.0.0 before 4.1.8
- Apache CXF before 3.6.12
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
- 4.2.3
- 4.1.8
- 3.6.12
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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