Riskcovery

CVE-2026-66909

Apache CXF: Unsafe deserialization of inbound JMS ObjectMessage

State
Published
Severity
9.8 Critical
Published
Aug 6, 2026
Updated
Aug 7, 2026
Reserved
Jul 28, 2026

Read the record on cve.org

Description

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.

Scores

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCISA-ADP

Weaknesses

  • CWE-502 Deserialization of Untrusted Data

Affected Products

ProductVersions
Apache CXFApache Software Foundation
  • 4.2.0 to before 4.2.3Affected
  • 4.0.0 to before 4.1.8Affected
  • before 3.6.12Affected

References

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