← Back to CVEs

CVE-2026-0871

MEDIUM

4.9

Description

A flaw was found in Keycloak. An administrator with `manage-users` permission can bypass the "Only administrators can view" setting for unmanaged attributes, allowing them to modify these attributes. This improper access control can lead to unauthorized changes to user profiles, even when the system is configured to restrict such modifications.

CVE Details

CVSS v3.1 Score4.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published2/27/2026

Last Modified3/5/2026

Sourcenvd

Honeypot Sightings0

Affected Products

redhat:build_of_keycloakredhat:keycloak

Weaknesses (CWE)

CWE-266

References

https://access.redhat.com/errata/RHSA-2026:2365(secalert@redhat.com)

https://access.redhat.com/errata/RHSA-2026:2366(secalert@redhat.com)

https://access.redhat.com/security/cve/CVE-2026-0871(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2428881(secalert@redhat.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.