Apache Axis2/Java up to 2.0.0 Tribes-based Clustering deserialization

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k2.66

Summaryinfo

A vulnerability categorized as critical has been discovered in Apache Axis2 and Java up to 2.0.0. Affected is the function org.apache.axis2.clustering.tribes.Axis2ChannelListener#messageReceived of the component Tribes-based Clustering. Such manipulation leads to deserialization. This vulnerability is listed as CVE-2026-66713. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apache Axis2 and Java up to 2.0.0. Affected by this issue is the function org.apache.axis2.clustering.tribes.Axis2ChannelListener#messageReceived of the component Tribes-based Clustering. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-66713 since 07/27/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/28/2026).

Upgrading to version 2.0.1 eliminates this vulnerability. Applying the patch e6f53b230bddcb40577c84ff290ba51e7265fa15 is able to eliminate this problem.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Axis2/Java 2.0.1
Patch: e6f53b230bddcb40577c84ff290ba51e7265fa15

Timelineinfo

07/27/2026 CVE reserved
07/28/2026 +1 days Advisory disclosed
07/28/2026 +0 days VulDB entry created
07/28/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: apache.org

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-66713 (🔒)
GCVE (CVE): GCVE-0-2026-66713
GCVE (VulDB): GCVE-100-383888

Entryinfo

Created: 07/28/2026 16:48
Changes: 07/28/2026 16:48 (58)
Complete: 🔍
Cache ID: 216::103

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