CVE WatchAug 18, 2026

CVE-2026-73632

Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be share

CVSS

4.3

Medium

EPSS

0.3%

p18

KEV

—

Exploit Today

0-100

Published: Aug 15, 2026 · Last modified: Aug 18, 2026 · CWE-567

EPSS · 30d

0.1%EPSS · 30 days0.4%

2026-08-162026-08-31

Technical 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.

Official references

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

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