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Apache Shiro: Session fixation: new session is not created after login by default

Apache Software Foundation Apache Shiro · CVE-2026-43827
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
5.9
EPSS
0.5%
First seen
10 h ago
Status
corroborated

All Apache Software Foundation vulnerabilities