EUVD-2026-14400

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

ch.iterial.keycloak.plugins:keycloak-directus-plugin (>=0.1.0 <=0.7.0), com.charlyghislain.keycloak:keycloak-importexport (>=21.0.0 <=23.0.1) +149 more potentially affected by CVE-2026-4633 via org.keycloak:keycloak-services (>=1.0-alpha-1 <=26.4.7)

org.keycloak:keycloak-services MAVEN version =1.0-alpha-1, =0.1.0, =21.0.0, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.0.1, =1.1.7 and more Source cves: CVE-2026-4633 Source advisory: OSV:GHSA-RHGQ-F8X5-J2JC...

Information Exposure

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Information Exposure in the identity-first login flow when Organizations are enabled. An attacker can obtain...

GHSA-RHGQ-F8X5-J2JC Keycloak's identity-first login flow exposes user information

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

Keycloak's identity-first login flow exposes user information

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633 Keycloak: keycloak: user enumeration via differential error messages

A flaw was found in Keycloak. A remote attacker can exploit differential error messages during the identity-first login flow when Organizations are enabled. This vulnerability allows an attacker to determine the existence of users, leading to information disclosure through user enumeration...

CVE-2026-4633

CVE-2026-4633 affects Keycloak and is triggered in the identity-first login flow when Organizations are enabled. The issue arises from differential error messages that enable an attacker to determine whether a user exists, leading to information disclosure through user enumeration . The documente...

EUVD-2026-14389

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...

Access Control Bypass

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Access Control Bypass due to incomplete enforcement of access control checks on PUT operations to the...

ch.iterial.keycloak.plugins:keycloak-directus-plugin (>=0.1.0 <=0.7.0), com.charlyghislain.keycloak:keycloak-importexport (>=21.0.0 <=23.0.1) +170 more potentially affected by CVE-2026-4628 via org.keycloak:keycloak-services (>=1.0-alpha-1 <=26.6.0)

org.keycloak:keycloak-services MAVEN version =1.0-alpha-1, =0.1.0, =21.0.0, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.4.10, =1.0.0, =1.2.0 and more Source cves: CVE-2026-4628 Source advisory: OSV:GHSA-4PGC-GFRR-WCMGhttps://vulners.com/osv/OSV:GHSA-4PGC-GFRR-...

GHSA-4PGC-GFRR-WCMG Keycloak has Improper Access Control that allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...

Keycloak has Improper Access Control that allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...

CVE-2026-4628

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...

CVE-2026-4628

Keycloak contains an improper access control flaw in the UMA resource_set endpoint. The vulnerability arises from incomplete enforcement of access checks on PUT operations, allowing authenticated users to bypass allowRemoteResourceManagement=false and modify protected resources, compromising data...

CVE-2026-4628

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...

CVE-2026-4628 Keycloak: org.keycloak.authorization: keycloak: unauthorized resource modification due to improper access control

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...

CVE-2026-4628 Keycloak: org.keycloak.authorization: keycloak: unauthorized resource modification due to improper access control

A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access UMA resourceset endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control chec...