CVE-2025-10044
Medium
Description
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.
SeverityMedium
CVSS4.3
Exploit probability—
ProductOrg.keycloak:keycloak-account-ui
PublishedSep 5, 2025
First seenSep 5, 2025
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- org.keycloak:keycloak-account-ui26.2.9, 26.3.4 or later
- org.keycloak:keycloak-admin-ui26.2.9, 26.3.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| org.keycloak:keycloak-account-uiMaven | v < 26.2.9, 26.3.0 ≤ v < 26.3.4 | 26.2.9, 26.3.4 |
| org.keycloak:keycloak-admin-uiMaven | v < 26.2.9, 26.3.0 ≤ v < 26.3.4 | 26.2.9, 26.3.4 |
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