Vulnerability Description
Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component in Apache Software Foundation Apache Axis2/Java through 2.0.0 on Apache Tomcat (only when Tribes clustering is enabled, which is off by default) allows an unauthenticated remote attacker with network access to the clustering port to execute arbitrary code via a crafted serialized Java object delivered to the cluster channel and deserialized in org.apache.axis2.clustering.tribes.Axis2ChannelListener#messageReceived. Users are recommended to upgrade to version 2.0.1, which fixes this issue by removing the clustering feature entirely.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Axis2\/Java | < 2.0.1 |
Related Weaknesses (CWE)
References
- https://github.com/apache/axis-axis2-java-core/commit/e6f53b230bddcb40577c84ff29Patch
- https://lists.apache.org/thread/fgggbv3sjjqw7p6q0j88gspt9b2rb728Mailing ListVendor Advisory
- http://www.openwall.com/lists/oss-security/2026/07/28/2Mailing ListThird Party Advisory
FAQ
What is CVE-2026-66713?
CVE-2026-66713 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component in Apache Software Foundation Apache Axis2/Java through 2.0.0 on Apache Tomcat (only when Tribes clustering i...
How severe is CVE-2026-66713?
CVE-2026-66713 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-66713?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Axis2\/Java.