CVE-2026-73631CWE-567

CVE-2026-73631

Medium · published August 15, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
17.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00262 · 17.8th percentile
Weakness
CWE-567 · Unsynchronized Access to Shared Data in a Multithreaded Context
Published
2026-08-15T15:16Z
Affected products (1)
ProductVersionsFixed in
apache/strutsall versions—
References (1)
https://cwiki.apache.org/confluence/display/WW/S2-070 · [email protected]
EPSS history
Timeline
  • 15 AUG 10:38Z
    Apache Struts: Shared parsing state in the JSON plugin
    cvelistv5