CVE-2026-96453

HIGH

MEDIUM Priority: 0.01 BB Relevance: 56/100

Published: 2026-11-05 Modified: 2026-11-06 First seen: 2026-11-05 Status: active

Attack Surface

Network No Auth Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network

AC: High

PR: None

UI: Required

S: Changed

C: High

I: High

A: None

Description

A flaw was found in the Keycloak Admin CLI kcadm tool, which is used by administrators to manage Keycloak servers from the command line. When a custom truststore is provided to verify the server identity, the tool incorrectly accepts any self-signed certificate as long as the hostname matches. This allows a network attacker to impersonate the Keycloak server, steal administrative credentials, and perform unauthorized management actions.