CVE-2026-64958 PUBLISHED

Apache CXF: Denial of service via message header attachments

Assigner: apache
Reserved: 21.07.2026 Published: 06.08.2026 Updated: 06.08.2026

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.

Product Status

Vendor Apache Software Foundation
Product Apache CXF
Versions Default: unaffected
  • affected from 4.2.0 to 4.2.3 (excl.)
  • affected from 4.0.0 to 4.1.8 (excl.)
  • affected from 0 to 3.6.12 (excl.)

Credits

  • Markus Vogl, RISE GmbH finder

References

Problem Types

  • CWE-400 Uncontrolled Resource Consumption CWE