CVE-2026-37979

MEDIUM6.5

Keycloak: Information disclosure via OIDC token introspection endpoint audience bypass

發布日:2026/5/19修改日:2026/6/4
也稱為:GHSA-4x37-hw65-52w8

描述

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other resource servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited remotely by any confidential client in the realm with valid credentials.

受影響套件(1)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

參考連結(8)