CVE-2026-44598

EUVD-2026-31739

25.05.2026, 21:16

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.

Open Redirect

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	UNKNOWN				---

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 11%

Debian Releases

Debian Product

Codename

shiro

bookworm	1.3.2-5 fixed
bullseye	1.3.2-4+deb11u1 fixed
sid	1.3.2-6 fixed
trixie	1.3.2-6 fixed

Common Weakness Enumeration

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.

References

https://shiro.apache.org/security-reports.html#cve_2026_44598

http://www.openwall.com/lists/oss-security/2026/05/25/8