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Red Hat Build Of Keycloak CVE-2026-17059

| EUVDEUVD-2026-48598 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-07-24 redhat GHSA-4w3x-69m8-478c
6.5
CVSS 3.1 · Vendor: redhat
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Severity by source

Vendor (redhat) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Red Hat
6.5 MEDIUM
qualitative

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

1
Analysis Generated
Jul 26, 2026 - 12:18 vuln.today

DescriptionCVE.org

A flaw was found in the role-users endpoint of the keycloak-services library, which is the core component of the Keycloak identity and access management solution. The issue occurs because the system fails to check if an administrator has permission to view individual users when listing members of a role. This allows a restricted administrator to see private information, such as names and email addresses, for users they should not be able to access.

AnalysisAI

Information disclosure in Red Hat Build of Keycloak allows restricted administrators to view private user details (names, email addresses) via the role-users endpoint, due to a missing permission check. The flaw affects the keycloak-services library, exposing sensitive data to low-privilege users. No active exploitation or public exploit is known, and EPSS indicates low exploitation probability.

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Authentication bypass in Red Hat Build of Keycloak (and Red Hat Single Sign-On 7) lets an unauthenticated attacker forge

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Privilege escalation in Keycloak's Dynamic Client Registration (DCR) component allows attackers with standard user accou

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CVE-2026-11800 HIGH
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Signature-verification bypass in Keycloak (and Red Hat's Keycloak-based products such as Red Hat Single Sign-On 7 and Re

CVE-2026-18215 HIGH
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Tenant-restriction bypass in Keycloak's Microsoft identity provider integration allows attackers holding any valid Micro

CVE-2026-18967 HIGH
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Session hijacking via SAML assertion replay in Keycloak's SAML broker component allows adjacent-network attackers to aut

Vendor StatusVendor

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CVE-2026-17059 vulnerability details – vuln.today

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