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Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Fri, 09 Oct 2026 05:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in the login theme rendering component of Keycloak. The issue occurs because the security filter responsible for cleaning user input can be bypassed, allowing a realm administrator to store malicious scripts in display fields. This could result in unauthorized JavaScript execution in the browsers of users visiting the login page, potentially leading to data exposure or session interference. | |
| Title | Keycloak-services: keycloak-services: stored xss on login page via kcsanitize bypass | |
| First Time appeared |
Redhat
Redhat build Keycloak Redhat red Hat Single Sign On |
|
| Weaknesses | CWE-79 | |
| CPEs | cpe:/a:redhat:build_keycloak: cpe:/a:redhat:red_hat_single_sign_on:7 |
|
| Vendors & Products |
Redhat
Redhat build Keycloak Redhat red Hat Single Sign On |
|
| References |
| |
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-09T04:28:55.081Z
Reserved: 2026-10-09T04:07:31.462Z
Link: CVE-2026-107889
No data.
Status : Received
Published: 2026-10-09T05:16:44.583
Modified: 2026-10-09T05:16:44.583
Link: CVE-2026-107889
No data.
OpenCVE Enrichment
No data.