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GHSA-87HF-473V-8H9C

Vulnerability from github – Published: 2026-08-15 12:30 – Updated: 2026-08-17 15:30

Details

Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be shared across concurrent requests, allowing response content associated with one request to become observable in another. Only the SMD / JSON-RPC handling of the JSON interceptor is affected, which is not enabled by default; applications using the json result type are not affected.

This issue affects Apache Struts: 7.2.1.

Users are recommended to upgrade to version 7.3.0, which fixes the issue.

Severity

4.3 (Medium)


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

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JSON

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  "affected": [],
  "aliases": [
    "CVE-2026-73632"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-567"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T11:16:27Z",
    "severity": "MODERATE"
  },
  "details": "Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be shared across concurrent requests, allowing response content associated with one request to become observable in another. Only the SMD / JSON-RPC handling of the JSON interceptor is affected, which is not enabled by default; applications using the json result type are not affected.\n\nThis issue affects Apache Struts: 7.2.1.\n\nUsers are recommended to upgrade to version 7.3.0, which fixes the issue.",
  "id": "GHSA-87hf-473v-8h9c",
  "modified": "2026-08-17T15:30:38Z",
  "published": "2026-08-15T12:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73632"
    },
    {
      "type": "WEB",
      "url": "https://cwiki.apache.org/confluence/display/WW/S2-071"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-73632 (GCVE-0-2026-73632)

Vulnerability from cvelistv5 – Published: 2026-08-15 10:38 – Updated: 2026-08-17 12:40

Title

Apache Struts: Shared serialization state in the JSON plugin

Summary

Severity

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 12:40 UTC

CWE

CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context

Assigner

apache mitre root Scorecard

References

1 reference

URL	Tags
https://cwiki.apache.org/confluence/display/WW/S2-071	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Struts	Affected: 7.2.1 (semver)

Credits

g0w6y (https://github.com/g0w6y)

Show details on NVD website

JSON

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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 4.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
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            }
          },
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                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-17T12:40:26.178330Z",
                "version": "2.0.3"
              },
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            }
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    "cna": {
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          "defaultStatus": "unaffected",
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          "type": "finder",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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.
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GHSA-87HF-473V-8H9C

CVE-2026-73632 (GCVE-0-2026-73632)

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