Critical severity9.8NVD Advisory· Published Jul 28, 2026· Updated Aug 5, 2026
CVE-2026-66713
CVE-2026-66713
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.
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Affected products
2- Range: <=2.0.0
Patches
Vulnerability mechanics
References
3- github.com/apache/axis-axis2-java-core/commit/e6f53b230bddcb40577c84ff290ba51e7265fa15nvdPatch
- www.openwall.com/lists/oss-security/2026/07/28/2nvdMailing ListThird Party Advisory
- lists.apache.org/thread/fgggbv3sjjqw7p6q0j88gspt9b2rb728nvdMailing ListVendor Advisory
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