Unknown [CVE-2026-66909] Apache CXF's JMS transport deserializes the body of any inbound JMS ObjectMessage using native Java deserialization, with no type restrictions in place
This security Apache Software Foundation advisory covers CVE-2026-66909 affecting Apache CXF.
Android app · Google Play
Monitor future Apache Software Foundation CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
Apache CXF's JMS transport deserializes the body of any inbound JMS ObjectMessage using native Java deserialization, with no type restrictions in place.
Any attacker able to place a message on the service's JMS destination can submit a malicious serialized object, leading to denial of service or, if a suitable gadget class is on the classpath, remote code execution. The fix disables ObjectMessage deserialization by default, with a configuration switch to re-enable it if needed.
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
- The fix disables ObjectMessage deserialization by default, with a configuration switch to re-enable it if needed.
- 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
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.