by Kastro
Paper/Archive/CVE-2026-66713

CVE-2026-66713

Apache Software Foundation Apache Axis2/Java — Apache Axis2/Java: deserialization of untrusted Data

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 77.5.775 × 2015.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Apache Axis2/Java≤ 2.0.0–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchgithub.com/apache/axis-axis2-java-core/commit/e6f53b230bddcb40577c84ff290ba51e7265fa15advisorylists.apache.org/thread/fgggbv3sjjqw7p6q0j88gspt9b2rb728refopenwall.com/lists/oss-security/2026/07/28/2