CVE-2026-44598

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account, but needs a user to act. Limited direct impact.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-05-25 21:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-07-24 10:10 UTC Last updatedMost recent change to the record

Details

Published

2026-05-25 21:16 UTC

Last modified

2026-07-24 10:10 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-601

Record status

Analyzed

Affected

• Apache Shiro < 2.1.1
• Apache Shiro 3.0.0

Attack profile CVSS 4.0 · 5.1

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

Low

User interaction

Passive

Confidentiality

Low

Integrity

None

Availability

None