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CVE-2026-66713

Apache Axis2/java remote code execution

9.8 CRITICALEPSS 1.72%
  1. Published28 Jul 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apache Axis2/java< 2.0.1

Remediation

Fixed in
Apache Axis2/java≥ 2.0.1

References

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Frequently asked

Is CVE-2026-66713 being actively exploited?

CVE-2026-66713 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.72%.

How severe is CVE-2026-66713?

CVE-2026-66713 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.72% probability of exploitation.

Which products are affected by CVE-2026-66713?

Affected products include Apache Axis2/java.

How do I fix CVE-2026-66713?

Upgrade affected software to a fixed version, for example Apache Axis2/java 2.0.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-66713 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.