CVE-2026-73632

Apache Struts: Shared serialization state in the JSON plugin

At a glance

Severity: MEDIUM 4.3
EPSS: EPSS 0.38 % · percentile 31 (2026-10-27)
State: PUBLISHED
Published: 2026-08-15
Updated: 2026-08-17
Assigner: apache
NVD status: Analyzed

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.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	CISA-ADP
CVSS 3.1	MEDIUM 4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-567

European references

ENISA EUVD · EUVD-2026-59606
GCVE · GCVE-0-2026-73632

Affected configurations (NVD CPE)

cpe:2.3:a:apache:struts:7.2.1:*:*:*:*:*:*:*

Affected products

Product	Versions
Apache Software Foundation · Apache Struts	affected 7.2.1

References

https://cwiki.apache.org/confluence/display/WW/S2-071

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD