CVE-2026-48895: Apache APISIX: Cas-auth Host header influence on CAS service URL

[Abhishek Choudhary <shreemaanabhishek () apache org>]

Severity: 

Affected versions:

- Apache APISIX 3.0.0 through 3.16.0

Description:

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache APISIX.

The attacker could manipulate some client headers to perform an open-redirect, to potentially expose the session token.

This issue affects Apache APISIX: from 3.0.0 through 3.16.0.

Users are recommended to upgrade to version 3.17.0, which fixes the issue.

Credit:

lokerxxx (reporter)

References:

https://apisix.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-48895