Improper Validation of Consistency within Input Affecting org.keycloak:keycloak-services package, versions [0,26.7.0)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.32% (25th percentile)

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  • Snyk IDSNYK-JAVA-ORGKEYCLOAK-17139456
  • published3 Jun 2026
  • disclosed27 May 2026
  • creditUnknown

Introduced: 27 May 2026

CVE-2026-9689  (opens in a new tab)
CWE-1288  (opens in a new tab)

How to fix?

Upgrade org.keycloak:keycloak-services to version 26.7.0 or higher.

Overview

org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services.

Affected versions of this package are vulnerable to Improper Validation of Consistency within Input via the authentication process when a client is configured with a wildcard redirect URI. An attacker can cause the client application to incorrectly process attacker-controlled OIDC response parameters by crafting a malicious authorization URL and tricking a user into clicking it.

CVSS Base Scores

version 4.0
version 3.1