VULNERABILITY INTELLIGENCE
CVE-2026-73631
CVSS score4.3 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2026-08-15
Last modified2026-08-18
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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.
Weakness classification
- security@apache.org: CWE-567
Primary references
- security@apache.org — Vendor Advisory