MEDIUM 5.5 NVD

CVE-2026-107889

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 byp

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.

References

Published: 2026-10-09 · Source: NVD · Feed updated: 2026-10-12
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-10-09 via NVD.
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