Critical [CVE-2026-66713] 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
This critical-severity Apache Software Foundation advisory covers CVE-2026-66713 affecting Apache Tomcat, Apache Axis2.
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Summary
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.
- through 2.0.0
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 2.0.1, which fixes this issue by removing the clustering feature entirely.
Official advisory · high-confidence parse· fetched 3 months ago·verify at source
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