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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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-2026-4628)

ID	Name	Product	Family	Type	Severity
476896	SCA: security update for org.keycloak:keycloak-services (GHSA-4pgc-gfrr-wcmg)	Tenable Cloud Security	SCA Checks	Local	medium
476896	SCA: security update for org.keycloak:keycloak-services (GHSA-4pgc-gfrr-wcmg)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
461384	Echo: keycloak-25: security update to 25.0.6+e1	Tenable Cloud Security	Echo Local Security Checks	Local	medium
461384	Echo: keycloak-25: security update to 25.0.6+e1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium

Detections

Analytics

CVE-2026-4628

medium

Tenable Plugins

medium

medium

medium

medium