CVE-2026-66713 Details
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.
A deserialization vulnerability has been identified in the Tribes-based clustering component of Apache Axis2/Java, affecting versions through 2.0.0. This issue arises when Tribes clustering is enabled, which is off by default. The vulnerability allows an unauthenticated remote attacker with network access to the clustering port to execute arbitrary code. Exploitation involves sending a crafted serialized Java object to the cluster channel, which is then deserialized by the Axis2ChannelListener, leading to unauthorized code execution.
Users are advised to upgrade to Apache Axis2 version 2.0.1, which addresses this vulnerability by removing the clustering feature entirely.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 28, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/07/28/2 | CVE | Mailing ListThird Party Advisory |
| https://github.com/apache/axis-axis2-java-core/commit/e6f53b230bddcb40577c84ff290ba51e7265fa15 | [email protected] | Patch |
| https://lists.apache.org/thread/fgggbv3sjjqw7p6q0j88gspt9b2rb728 | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache axis2/java | < 2.0.1 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 5, 2026 | Initial Analysis | [email protected] |
| Jul 29, 2026 | CVE Modified | CISA-ADP |
| Jul 28, 2026 | CVE Modified | CISA-ADP |
| Jul 28, 2026 | CVE Modified | CVE |
| Jul 28, 2026 | New CVE Received | [email protected] |