VULNERABILITY INTELLIGENCE

CVE-2026-9689

CVSS score4.2 MEDIUM
EPSS probability0.32%
CISA KEVNot currently listed
Published2026-05-27
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Description

A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers (URIs), a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks this link, the client application might incorrectly prioritize attacker-controlled information over legitimate data. This vulnerability, known as HTTP parameter pollution, could allow an attacker to bypass security measures or gain unauthorized access to resources.

Weakness classification

  • secalert@redhat.com: CWE-1288

Primary references