Description (CNA)
A flaw was found in Keycloak, an open-source identity and access management solution. When a client application is configured to accept broad redirect Uniform Resource Identifiers (URIs), a remote attacker can manipulate the authentication process by crafting a special web address. If a user clicks this link, the client application might incorrectly prioritize attacker-controlled information over legitimate data. This vulnerability, known as HTTP parameter pollution, could allow an attacker to bypass security measures or gain unauthorized access to resources.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat build of Keycloak 26.4 | unaffected 26.4.14-1 before * |
| Red Hat / Red Hat build of Keycloak 26.4 | unaffected 26.4-22 before * |
| Red Hat / Red Hat build of Keycloak 26.4 | unaffected 26.4-22 before * |
| Red Hat / Red Hat build of Keycloak 26.4.14 | unaffected |
| Red Hat / Red Hat build of Keycloak 26.6 | unaffected 26.6.5-1 before * |
| Red Hat / Red Hat build of Keycloak 26.6 | unaffected 26.6-11 before * |
| Red Hat / Red Hat build of Keycloak 26.6 | unaffected 26.6-11 before * |
| Red Hat / Red Hat build of Keycloak 26.6.5 | unaffected |
CWE
CWE-1288
References
- https://access.redhat.com/errata/RHSA-2026:50846
- https://access.redhat.com/errata/RHSA-2026:50847
- https://access.redhat.com/errata/RHSA-2026:50848
- https://access.redhat.com/errata/RHSA-2026:50849
- https://access.redhat.com/security/cve/CVE-2026-9689
- https://bugzilla.redhat.com/show_bug.cgi?id=2481845
ADP enrichment
No English description supplied.
No references supplied.