Vulnerability-Lookup

GHSA-FHH8-QFJ4-G948

Vulnerability from github – Published: 2026-07-28 15:32 – Updated: 2026-07-28 18:33

Details

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.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-66713"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-28T15:17:50Z",
    "severity": "CRITICAL"
  },
  "details": "Deserialization of Untrusted Data (CWE-502) in the Tribes-based clustering component\n\n \u00a0in Apache Software Foundation Apache Axis2/Java through 2.0.0 on Apache Tomcat\n\n \u00a0(only when Tribes clustering is enabled, which is off by default) allows an\n\n \u00a0unauthenticated remote attacker with network access to the clustering port to\n\n \u00a0execute arbitrary code via a crafted serialized Java object delivered to the cluster\n\n \u00a0channel and deserialized in\n\n \u00a0org.apache.axis2.clustering.tribes.Axis2ChannelListener#messageReceived. Users are\n\n \u00a0recommended to upgrade to version 2.0.1, which fixes this issue by removing the\n\n \u00a0clustering feature entirely.",
  "id": "GHSA-fhh8-qfj4-g948",
  "modified": "2026-07-28T18:33:02Z",
  "published": "2026-07-28T15:32:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66713"
    },
    {
      "type": "WEB",
      "url": "https://github.com/apache/axis-axis2-java-core/commit/e6f53b230bddcb40577c84ff290ba51e7265fa15"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/fgggbv3sjjqw7p6q0j88gspt9b2rb728"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/07/28/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-66713 (GCVE-0-2026-66713)

Vulnerability from cvelistv5 – Published: 2026-07-28 13:44 – Updated: 2026-07-29 03:55

Title

Apache Axis2/Java: deserialization of untrusted Data

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.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-28 00:00 UTC

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

apache mitre root

References

3 references

URL	Tags
https://github.com/apache/axis-axis2-java-core/co…	patch
https://lists.apache.org/thread/fgggbv3sjjqw7p6q0…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/07/28/2

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Axis2/Java	Affected: 0 , ≤ 2.0.0 (semver)

Credits

liuhuajin of Huawei

Show details on NVD website

JSON

To clipboard

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              "confidentialityImpact": "HIGH",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

GHSA-FHH8-QFJ4-G948

CVE-2026-66713 (GCVE-0-2026-66713)

Tags

Sightings

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