CVE-2026-43827
Apache Shiro: Session fixation: new session is not created after login by default
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.
INFO
Published Date :
May 25, 2026, 8:19 p.m.
Last Modified :
May 25, 2026, 8:19 p.m.
Remotely Exploit :
Yes !
Source :
apache
Affected Products
The following products are affected by CVE-2026-43827
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | f0158376-9dc2-43b6-827c-5f631a4d8d09 |
Solution
- Upgrade Apache Shiro to 2.1.1 or later.
- Upgrade Apache Shiro to 3.0.0-alpha-2 or later.
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CVE-2026-43827 vulnerability anywhere in the article.