CVE-2026-73632

Apache Struts: Shared serialization state in the JSON plugin

Published Aug 15, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
CPEs cpe:2.3:a:apache:struts:7.2.1:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Apache
Apache struts
Vendors & Products Apache
Apache struts
Type Values Removed Values Added
Description 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.
Title Apache Struts: Shared serialization state in the JSON plugin
Weaknesses CWE-567
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Aug 17, 2026, 12:40 PM
Reserved
Aug 13, 2026, 11:51 AM
Status
Analyzed
Published
Aug 15, 2026, 11:16 AM
Modified
Aug 18, 2026, 5:47 PM