CVE-2026-97847

Red Hat build of Keycloak 26.4 · Vulnerability

CVSS 3.1 7.1 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-97847

Published

A flaw was found in the protocol mapper and identity resolution components of Keycloak. The issue occurs when a client manager uses hardcoded-claim mappers to override identity claims in sessionless service-account tokens. Because these tokens lack a session ID, Keycloak may incorrectly resolve the token bearer as a different, highly privileged user based on the manipulated claims. This can allow an attacker with limited client management permissions to impersonate a realm administrator and gain full control over the realm.

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Affected versions, risk and source history

Exploitation and risk

Source status

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Risk history

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Advisory history

5 saved versions

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9 Nov 2026 20:02:10 UTC