SB2025031143 - Multiple vulnerabilities in Keycloak

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2025-1391)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper mapping of users to organizations based solely on email/username patterns. A remote attacker can trick an organization administrator into allowing user access based on naming pattern if, for example, self-registration is enabled and unrestricted.

2) Improper authentication (CVE-ID: CVE-2025-0604)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to Keycloak does not perform an LDAP bind after a password reset. A remote user can bypass authentication process for expired or disabled AD accounts gain unauthorized access to the application.

Remediation

Install update from vendor's website.

References

• https://github.com/keycloak/keycloak/security/advisories/GHSA-gvgg-2r3r-53x7
• https://github.com/keycloak/keycloak/security/advisories/GHSA-2p82-5wwr-43cw