CVE-2026-44598: Apache Shiro

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

With valid login credentials, URL Redirection to Untrusted Site ('Open Redirect'), Server-Side Request Forgery (SSRF) vulnerability in Apache Shiro. This issue affects Apache Shiro from 2.0-alpha to 2.1.0, and 3.0.0-alpha-1, only when using shiro-jakarta-ee integration module. Users are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue by encrypting the cookie. After successful login, Jakarta EE integration module uses shiroSavedRequest cookie to redirect to a particular web page after login. This cookie was not validated, and can be forged to send a HTTP GET request from the server itself to an arbitrary URL from the cookie.

Affected products

• Apache Shiro: from 2.0.0, before 2.1.1 (fixed in 2.1.1); version 3.0.0 only

Published 2026-05-25. Last modified 2026-07-24.