Quick answers
- Is CVE-2026-96547 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-96547 being exploited in the wild.
- How severe is CVE-2026-96547?
- Medium severity, with a CVSS score of 6.5, published 6 November 2026.
- Which products and versions are affected?
- Keycloak Keycloak.
- Is there a fix for CVE-2026-96547?
- 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-2026-96547 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-96547?
- Check whether you run 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 Dynamic Client Registration component fails to properly restrict which claim names can be used when configuring new clients, allowing CWE-862 (missing authorization). An attacker with valid registration credentials can create a client that maps standard user attributes to sensitive security roles like realm_access.roles, enabling privilege escalation on external relying parties. The vulnerability requires initial network access with valid credentials but results in forged authorization tokens.
Affected products
- Keycloak Keycloak
Timeline
- 2026-11-06: disclosed