Cross-site Scripting (XSS) Affecting keycloak-25 package, versions <25.0.6+e1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-ECHOLATEST-KEYCLOAK25-19435071
  • published31 Aug 2026
  • disclosed5 Sept 2025

Introduced: 5 Sep 2025

CVE-2025-10044  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Echo:latest keycloak-25 to version 25.0.6+e1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream keycloak-25 package and not the keycloak-25 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in Keycloak. Keycloak’s account console and other pages accept arbitrary text in the error_description query parameter. This text is directly rendered in error pages without validation or sanitization. While HTML encoding prevents XSS, an attacker can craft URLs with misleading messages (e.g., fake support phone numbers or URLs), which are displayed within the trusted Keycloak UI. This creates a phishing vector, potentially tricking users into contacting malicious actors.

CVSS Base Scores

version 3.1