CVE-2026-9791: Incorrect Authorization in Red Hat Red Hat Build of Keycloak
A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers.
AI Analysis
Technical Summary
This vulnerability in Red Hat Build of Keycloak allows an authenticated user who is a member of an organization to exploit user-facing APIs such as the account API or request an OpenID Connect token with the 'organization' scope. Despite an administrator disabling the Organizations feature, organization metadata can still be disclosed in tokens. This incorrect authorization flaw could cause resource servers to make authorization decisions based on outdated or unintended organization information.
Potential Impact
The impact is limited to the disclosure of organization metadata in tokens to authenticated users with existing organization membership. This could lead to incorrect authorization decisions by resource servers relying on this metadata. There is no indication of privilege escalation, denial of service, or data integrity impact. The CVSS score of 4.3 reflects a low to medium confidentiality impact with no integrity or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-9791 for current remediation guidance. No official fix or temporary workaround is currently documented in the provided advisory content. Administrators should monitor the vendor advisory for updates and consider restricting access to affected APIs or scopes if feasible until a fix is available.
CVE-2026-9791: Incorrect Authorization in Red Hat Red Hat Build of Keycloak
Description
A flaw was found in Keycloak. An authenticated user with existing organization membership can exploit this flaw by accessing user-facing APIs, such as the account API or by requesting an OpenID Connect (OIDC) token with the 'organization' scope. This allows organization metadata to be disclosed in tokens, even after an administrator has explicitly disabled the Organizations feature, potentially leading to incorrect authorization decisions by resource servers.
CVSS v3.1
Score 4.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Red Hat Build of Keycloak allows an authenticated user who is a member of an organization to exploit user-facing APIs such as the account API or request an OpenID Connect token with the 'organization' scope. Despite an administrator disabling the Organizations feature, organization metadata can still be disclosed in tokens. This incorrect authorization flaw could cause resource servers to make authorization decisions based on outdated or unintended organization information.
Potential Impact
The impact is limited to the disclosure of organization metadata in tokens to authenticated users with existing organization membership. This could lead to incorrect authorization decisions by resource servers relying on this metadata. There is no indication of privilege escalation, denial of service, or data integrity impact. The CVSS score of 4.3 reflects a low to medium confidentiality impact with no integrity or availability impact.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-9791 for current remediation guidance. No official fix or temporary workaround is currently documented in the provided advisory content. Administrators should monitor the vendor advisory for updates and consider restricting access to affected APIs or scopes if feasible until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-05-28T03:07:29.305Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-9791","vendor":"Red Hat"}]
Threat ID: 6a1839bbe29bf47b50eaa21c
Added to database: 5/28/2026, 12:48:59 PM
Last enriched: 5/28/2026, 1:03:37 PM
Last updated: 5/29/2026, 6:11:02 PM
Views: 23
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