SB2025092283 - Multiple vulnerabilities in Red Hat build of Keycloak 26.2



SB2025092283 - Multiple vulnerabilities in Red Hat build of Keycloak 26.2

Published: September 22, 2025 Updated: September 11, 2026

Security Bulletin ID SB2025092283
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2025-9162)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input within the keycloak-model-storage-service component. The KeycloakRealmImport custom resource substitutes placeholders within imported realm documents, potentially referencing environment variables. A remote privileged user can inject malicious content during the realm import procedure and gain access to sensitive information. 


2) Spoofing attack (CVE-ID: CVE-2025-10044)

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

CVSSv4: 2.1 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N]


The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to text passed via the "error_description" query parameter is displayed to the end user. A remote attacker can inject arbitrary text into the page and perform spoofing attack.


Remediation

Install update from vendor's website.