--- title: "CVE-2026-73632\n | Ubuntu" description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/CVE-2026-73632?format=md keywords: index, follow --- # CVE-2026-73632 Publication date 15 August 2026 Last updated 19 August 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## 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. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | --- * [How can I get the fixes?](https://ubuntu.com/security/cves/about#security) * [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses) ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-73632) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-73632) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-73632) * [Debian](https://security-tracker.debian.org/tracker/CVE-2026-73632) ### Other references * *