CVE-2025-10044 – Keycloak: keycloak error_description injection on error pages

The following table lists the changes that have been made to the
CVE-2025-10044 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Sep. 05, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
    Added CWE CWE-79
    Added Reference https://access.redhat.com/security/cve/CVE-2025-10044
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2393551
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