apache/shiro · Security
Apache Shiro has a session fixation vulnerability
- GHSA ID
- GHSA-fcvm-3cpj-f9qx
- CVE ID
- CVE-2026-43827
- Severity
- medium
- Published
- Updated
- CVSS v4
- 5.9 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/RE:L/U:Amber
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.
CWEs
- CWE-384 · Session Fixation