CVE-2026-97367: Keycloak Account REST API session manipulation

CVE-2026-97367 · Severity: medium · CVSS 6.4 · Published 2026-11-06

Keycloak is an identity and access management system that controls user authentication and account access for applications. A flaw in its Account REST API allows an attacker with client registration privileges to manipulate security tokens and take over another user's active session. An attacker can then access, modify, or completely take over a victim's account by changing the recovery email and resetting the password.

Technologies: Red Hat Keycloak. Vendors: Red Hat.

Quick answers

Is CVE-2026-97367 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-97367 being exploited in the wild.
How severe is CVE-2026-97367?
Medium severity, with a CVSS score of 6.4, published 6 November 2026.
Which products and versions are affected?
Red Hat Keycloak.
Is there a fix for CVE-2026-97367?
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-2026-97367 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-97367?
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 is an improper authentication flaw (CWE-287) in Keycloak's Account REST API where session identification is not properly validated. A malicious client owner can manipulate their own security tokens to map sensitive claims (such as sid) and point to a different user's active session. The attack requires network access, client registration privileges, and specific session timing and user interaction; successful exploitation allows an attacker to read and modify victim account data, leading to account takeover.

Affected products

  • Red Hat Keycloak

Timeline

  • 2026-11-06: disclosed

References

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