PT-2026-66724 · Red Hat · Red Hat Build Of Keycloak+3

CVE-2026-18208

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Publicado

2026-07-31

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Atualizado

2026-07-31

CVSS v3.1

6.5

Média

VetorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
A flaw was found in the OIDC token introspection endpoint of the keycloak-services component. Keycloak is an open-source identity and access management solution used to secure modern applications and services. The issue occurs when a confidential client, configured to receive signed JWT introspection responses, attempts to introspect a token issued for a different audience. Although the endpoint correctly identifies the token as inactive for that client, it still returns the full set of token claims within a signed JWT field. This allows an unauthorized client to bypass audience-based restrictions and access sensitive information contained in the token.

Correção

Missing Authorization

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Enumeração de Fraquezas

Identificadores relacionados

CVE-2026-18208

Produtos afetados

Red Hat Build Of Keycloak
Red Hat Data Grid 8
Red Hat Jboss Enterprise Application Platform Expansion Pack
Red Hat Single Sign-On 7