CVE-2026-73631

4.3 mediumEPSS 0.4%

Medium (4.3) in apache struts. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.3 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-567
Published: 2026-08-15
Modified: 2026-08-18
Record from: the NVD, synced 2026-10-19

Affected

apache:struts

References

https://cwiki.apache.org/confluence/display/WW/S2-070

Check your stack JSON