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CVE-2026-73631 Details

Description

Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-request parsing state could be shared across concurrent requests, allowing data associated with one request to become observable in another, and configured parsing limits not to be enforced as intended. Populating actions from a JSON request body is not enabled by default; applications that do not use the JSON plugin 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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://cwiki.apache.org/confluence/display/WW/S2-070	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-567	Unsynchronized Access to Shared Data in a Multithreaded Context	[email protected]

Affected Products

Product	Versions
apache struts	7.2.1
CPE cpe:2.3:a:apache:struts:7.2.1:::::::* Remediation No remediation found in references.

Change History

3 change records found show changes

Date	Action	Recorded By
Aug 18, 2026	Initial Analysis	[email protected]
Aug 17, 2026	CVE Modified	CISA-ADP
Aug 15, 2026	New CVE Received	[email protected]