CVE-2026-19078 MEDIUM

CVE-2026-19078: Ose-oauth-server: oauth-server: open redirect vulnerability enables phishing via unvalidated parameter.

Vendor Red Hat
Product Red Hat OpenShift Container Platform 4
Weakness CWE-601 · Open redirect
Published August 11, 2026
Last update August 11, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in the oauth-server component. This open redirect vulnerability occurs when the 'then' parameter in the grant approval handler is not properly validated. A remote attacker can craft a malicious URL that, when approved or denied by an authenticated user, redirects them to an attacker-controlled website. This could enable phishing attacks, potentially tricking users into revealing sensitive information.

Key dates

02Disclosure timeline

August 11, 2026 CVE published

Related vulnerabilities

04Related CVE