Cross-site Scripting (XSS) Affecting keycloak package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.19% (64th percentile)

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  • Snyk IDSNYK-RHEL10-KEYCLOAK-17742538
  • published1 Jul 2026
  • disclosed13 Nov 2018

Introduced: 13 Nov 2018

CVE-2018-14655  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 keycloak.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak package and not the keycloak package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.