CVE-2023-6291 HIGH

CVE-2023-6291: Keycloak: redirect_uri validation bypass

Vendor Red Hat
Product Red Hat build of Keycloak 22.0.7
Weakness CWE-601 · Open redirect
Published January 26, 2024
Last update November 11, 2025

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.

Key dates

02Disclosure timeline

January 26, 2024 CVE published
November 11, 2025 Record updated

Related vulnerabilities

04Related CVE