CVE-2026-66909

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.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache CXF4.2.0 < 4.2.3affected
Apache Software FoundationApache CXF4.0.0 < 4.1.8affected
Apache Software FoundationApache CXF0 < 3.6.12affected

Weaknesses

  • CWE-502: CWE-502 Deserialization of Untrusted Data

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

CVE Program Container

Additional References

References