CVE-2026-15572

Published: Ago 05, 2026 Last Modified: Ago 05, 2026

ExploitDB:

Other exploit source:

Google Dorks:

HIGH 8,8

Source: [email protected]

Attack Vector: network

Attack Complexity: low

Privileges Required: low

User Interaction: none

Scope: unchanged

Confidentiality: high

Integrity: high

Availability: high

Description

AI Translation Available

A flaw was found in Keycloak's Dynamic Client Registration (DCR) security policy management. The 'Allowed Protocol Mapper Types' policy, which restricts which types of data mappers a client can use, fails to re-validate the mapper type during a client update if the mapper's configuration remains unchanged. An attacker with client registration privileges can exploit this by first registering an allowed mapper type with a malicious configuration and then swapping it for a restricted, high-privilege mapper type (such as one that hardcodes administrative roles). This allows the attacker to gain full administrative access to the Keycloak realm.