CVE-2026-4628

MEDIUM

4.3

Description

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity.

CVE Details

CVSS v3.1 Score4.3

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published3/23/2026

Last Modified4/1/2026

Sourcenvd

Honeypot Sightings0

Affected Products

redhat:build_of_keycloak

Weaknesses (CWE)

CWE-284

References

https://access.redhat.com/security/cve/CVE-2026-4628(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2450240(secalert@redhat.com)

IOC Correlations

No correlations recorded

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