Bug 2508125 (CVE-2026-66713)

Summary:	CVE-2026-66713 org.apache.axis2/axis2-java-core: tomcat: Apache Axis2/Java: Remote code execution via deserialization of untrusted data in Tribes clustering
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability-draft	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anujha, asoldano, bbaranow, bmaxwell, bstansbe, csutherl, dlofthou, dsoumis, istudens, ivassile, iweiss, jclere, jwon, mosmerov, msvehla, nwallace, pberan, pesilva, pjindal, plodge, pmackay, rhel-process-autobot, rmaucher, rstancel, szappis, thjenkin, vdosoudi, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in Apache Axis2/Java, specifically within its Tribes-based clustering component. When this clustering feature is enabled on Apache Tomcat, an attacker can exploit a vulnerability related to the deserialization of untrusted data. This allows an unauthenticated remote attacker, with network access to the clustering port, to send a specially crafted message. Successful exploitation could lead to the execution of arbitrary code, giving the attacker full control over the affected system.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-07-28 17:45:49 UTC

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.