CVEvulnerability
CVE-2026-66909
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-08-06
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502
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.
Affected configurations
• apache cxf (< 3.6.12)
• apache cxf (>= 4.0.0 < 4.1.8)
• apache cxf (>= 4.2.0 < 4.2.3)
Related
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://lists.apache.org/thread/lr5d4tg6tf7j29jmw8wt242oowonjqpx Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/08/06/18 www.openwall.com