GHSA-fcvm-3cpj-f9qx
Apache Shiro has a session fixation vulnerability
At a glance
- Published
- Updated
- CVE
- CVE-2026-43827
- CVSS_V4
- 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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.apache.shiro:shiro-core | introduced 1.0.0-incubating, fixed 2.2.0 |
| Maven · org.apache.shiro:shiro-core | introduced 3.0.0-alpha-1, fixed 3.0.0-alpha-2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-43827 ADVISORY
- https://github.com/apache/shiro PACKAGE
- https://shiro.apache.org/security-reports.html#cve_2026_43827 WEB
- http://www.openwall.com/lists/oss-security/2026/05/25/6 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |