5.9
Medium
CVE-2026-43827 Default configurations of Apache Shiro have a session fixation vulnerability
Description
Default configurations of Apache Shiro have a session fixation vulnerability. This issue affects Apache Shiro from 1.0 to 2.1.0, and 3.0.0-alpha-1. Users are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue. In the affected versions, when a session already exists, it is not invalidated upon successful login, nor is a new session being generated with a new ID.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Shiro 3.0 | 3.0.0-alpha-0 → 3.0.0-alpha-1 | No fix stated |
| Apache Shiro 1.0 | 1.0 → 2.1.0 | No fix stated |
References
- shiro.apache.org shiro.apache.org
Timeline
- Published
- Last modified
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