Feed/CVE-2026-9689
CVE-2026-9689MEDIUMCVSS 4.2

Keycloak Services has Improper Validation of Consistency within Input

Published May 27, 2026·Updated Aug 20, 2026

NVD 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.

Affected Packages (1)

org.keycloak:keycloak-servicesMAVEN
From 26.5.0
Fixed in = 26.6.4

CVSS Vector

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

References

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