Is CVE-2026-92856 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-92856 being exploited in the wild.

How severe is CVE-2026-92856?

Medium severity, with a CVSS score of 4.9, published 6 November 2026.

Is there a fix for CVE-2026-92856?

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-2026-92856 attacked?

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

Am I affected by CVE-2026-92856?

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-2026-92856: Keycloak SAML broker ProxyRestriction bypass

CVE-2026-92856 · Severity: medium · CVSS 4.9 · Published 2026-11-06

Keycloak is an identity and access management system that brokers login sessions between identity providers and downstream applications. The vulnerability allows an attacker to bypass security restrictions that prevent login sessions from being shared beyond their intended scope, potentially enabling unauthorized access to protected services when specific SAML configurations are present.

Technologies: Red Hat Keycloak. Vendors: Red Hat.

Quick answers

Is CVE-2026-92856 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-92856 being exploited in the wild.
How severe is CVE-2026-92856?: Medium severity, with a CVSS score of 4.9, published 6 November 2026.
Which products and versions are affected?: Red Hat Keycloak.
Is there a fix for CVE-2026-92856?: 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-2026-92856 attacked?: It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-92856?: 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 SAML brokering component in Keycloak fails to enforce ProxyRestriction constraints during the brokering flow, allowing attackers to bypass identity delegation boundaries. Exploitation requires a specific SAML brokering configuration with ProxyRestriction conditions from an upstream provider and low-privilege credentials. An attacker gains the ability to establish unauthorized sessions in downstream service providers beyond intended delegation boundaries.

Affected products

Red Hat Keycloak

Timeline

2026-11-06: disclosed

References

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