Description
A flaw was found in Keycloak's OIDC component in the "checkLoginIframe," which allows unvalidated cross-origin messages. This flaw allows attackers to coordinate and send millions of requests in seconds using simple code, significantly impacting the application's availability without proper origin validation for incoming messages.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | keycloak | 21.1.0 – < 22.0.10, 23.0.0 – < 24.0.3 | 22.0.10 |
| Red Hat | Red Hat AMQ Broker 7 | — | — |
| Red Hat | Red Hat build of Keycloak 22 | — | — |
| Red Hat | Red Hat build of Keycloak 22.0.10 | — | — |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 7 | — | — |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 8 | — | — |
| Red Hat | Red Hat Single Sign-On 7.6 for RHEL 9 | — | — |
| Red Hat | RHEL-8 based Middleware Containers | — | — |
| Red Hat | RHOSS-1.33-RHEL-8 | — | — |
| Red Hat | RHSSO 7.6.8 | — | — |
| Red Hat | Migration Toolkit for Applications 6 | — | — |
| Red Hat | Migration Toolkit for Applications 7 | — | — |
| Red Hat | Red Hat build of Apicurio Registry 2 | — | — |
| Red Hat | Red Hat Data Grid 8 | — | — |
| Red Hat | Red Hat Decision Manager 7 | — | — |
| Red Hat | Red Hat Developer Hub 1 | — | — |
| Red Hat | Red Hat Fuse 7 | — | — |
| Red Hat | Red Hat JBoss Data Grid 7 | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 6 | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | — | — |
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | — | — |
| Red Hat | Red Hat Process Automation 7 | — | — |
| Red Hat | streams for Apache Kafka | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Single Sign On 7 | rh-sso7-keycloak +1 | 18.0.13-1.redhat_00001.1.el7sso | RHSA-2024:1862, RHSA-2024:1861, RHSA-2024:1860 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.keycloak:keycloak-services | < 22.0.10 | 22.0.10 | GHSA-m6q9-p373-g5q8 |
| Maven | org.keycloak:keycloak-services | >= 23.0.0, < 24.0.3 | 24.0.3 | GHSA-m6q9-p373-g5q8 |
Advisories 5
- RHSA-2024:1861 Red Hat Security Advisory: Red Hat Single Sign-On 7.6.8 security update on RHEL 8 Red Hat Security Advisories (RHSA) · Oct 8, 2026
- RHSA-2024:1862 Red Hat Security Advisory: Red Hat Single Sign-On 7.6.8 security update on RHEL 9 Red Hat Security Advisories (RHSA) · Oct 8, 2026
- RHSA-2024:1860 Red Hat Security Advisory: Red Hat Single Sign-On 7.6.8 enhancement and security update on RHEL 7 Red Hat Security Advisories (RHSA) · Oct 8, 2026
- WID-SEC-2024-0910 Red Hat Single Sign On: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Jun 24, 2025
- WID-SEC-2024-0914 Red Hat Enterprise Linux (keycloak): Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 17, 2024
References
- RHSA-2024:1860 vendor-advisory
- RHSA-2024:1861 vendor-advisory
- RHSA-2024:1862 vendor-advisory
- RHSA-2024:1864 vendor-advisory
- RHSA-2024:1866 vendor-advisory
- RHSA-2024:1867 vendor-advisory
- RHSA-2024:1868 vendor-advisory
- RHSA-2024:2945 vendor-advisory
- RHSA-2024:4057 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2024-1249 vdb-entry
- RHBZ#2262918 issue-tracking