Is CVE-2026-97847 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-97847 being exploited in the wild.

How severe is CVE-2026-97847?

High severity, with a CVSS score of 7.1, published 5 November 2026.

Is there a fix for CVE-2026-97847?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-97847 attacked?

It is attacked over the network, in a hosted service.

Am I affected by CVE-2026-97847?

Check whether you run Red Hat Keycloak. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-97847: Keycloak privilege escalation via hardcoded-claim mappers

CVE-2026-97847 · Severity: high · CVSS 7.1 · Published 2026-11-05

Keycloak is an identity and access management system that organizations use to authenticate users and secure applications. A flaw in how Keycloak validates token claims allows someone with limited client management permissions to forge tokens that impersonate a realm administrator, gaining complete control over the authentication system and all protected applications. The vulnerability affects service-account tokens that lack session validation.

Technologies: Red Hat Keycloak. Vendors: Red Hat.

Quick answers

Is CVE-2026-97847 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-97847 being exploited in the wild.
How severe is CVE-2026-97847?: High severity, with a CVSS score of 7.1, published 5 November 2026.
Which products and versions are affected?: Red Hat Keycloak.
Is there a fix for CVE-2026-97847?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-97847 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-97847?: Check whether you run Red Hat Keycloak. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in Keycloak's protocol mapper and identity resolution components when hardcoded-claim mappers are used to modify sessionless service-account tokens. Because these tokens lack a session ID, Keycloak fails to properly validate token integrity and incorrectly resolves the token bearer as a different privileged user based on manipulated claims. An attacker with client management privileges can exploit this improper authentication mechanism (CWE-287) to escalate to realm administrator authority.

Affected products

Red Hat Keycloak

Timeline

2026-11-05: disclosed

References

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