8.8
High
CVE-2026-3047 A flaw was found in org.keycloak.broker.saml
Description
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat build of Keycloak 26.2 26.2 | earliest → < 26.2-16 | 26.2-16 |
| Red Hat build of Keycloak 26.4 26.4 | earliest → < 26.4-12 | 26.4-12 |
| Red Hat build of Keycloak 26.2.14 | Versions not published | |
| Red Hat build of Keycloak 26.4.10 | Versions not published |
References
- RHSA-2026:3925 access.redhat.com
- RHSA-2026:3926 access.redhat.com
- RHSA-2026:3947 access.redhat.com
- RHSA-2026:3948 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2441966 bugzilla.redhat.com
Timeline
- Published
- Last modified
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The 26 CVEs of Red Hat build of Keycloak 26.2 →
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CVE-2026-4636
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