CVE-2026-48589 — MEDIUM (5.4)

Q: How severe is CVE-2026-48589?

CVE-2026-48589 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-48589?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Shiro.

Vulnerability Description

Apache Shiro’s Jakarta EE module used the HTTP Referer header in certain cases to issue redirect after a user login. In affected versions, insufficient validation of this client-controlled value could allow an attacker to influence the redirect target in applications using the Jakarta EE module. This issue affects Apache Shiro from 2.0-alpha to 2.2.0, and 3.0.0-alpha-1, only when using shiro-jakarta-ee integration module.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Apache	Shiro	>= 2.0.0, < 2.2.1

Related Weaknesses (CWE)

CWE-601

References

https://shiro.apache.org/security-reports.html#cve_2026_48589Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/25/9Mailing ListThird Party Advisory

FAQ

What is CVE-2026-48589?

CVE-2026-48589 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Apache Shiro’s Jakarta EE module used the HTTP Referer header in certain cases to issue redirect after a user login. In affected versions, insufficient validation of this client-controlled value could...

How severe is CVE-2026-48589?

CVE-2026-48589 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-48589?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Shiro.