Cloudanix VulnDB

CVE-2026-7571

High · 7.1

CVSS

7.1

EPSS

0.5%

Published

May 19, 2026

CISA due date

—

The record

A flaw was found in Keycloak. A low-privilege user, with knowledge of user credentials and client ID, can bypass a security control intended to disable the implicit flow in OpenID Connect (OIDC) clients. By manipulating client data during a session restart, an attacker can obtain an access token that should not be available. This vulnerability can also lead to the exposure of these access tokens in server logs, proxy logs, and HTTP Referrer headers, resulting in sensitive information disclosure.

Affected packages

Ecosystem Package Introduced Fixed

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