CVE-2026-3047
Last modified
CVE-2026-3047 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.47% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Build Of Keycloak | All versions |
| Redhat | Build Of Keycloak | 26.2 |
| Redhat | Build Of Keycloak | 26.2.14 |
| Redhat | Build Of Keycloak | 26.4 |
| Redhat | Build Of Keycloak | 26.4.10 |
| Redhat | Keycloak | All versions |
References
- https://access.redhat.com/errata/RHSA-2026:3925Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3926Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3947Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3948Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-3047Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2441966Issue Tracking, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3925Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3926Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3947Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:3948Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-3047Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2441966Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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