CVE-2026-9791
Keycloak-rhel9: organization data leak after feature disabled in keycloak
- State
- Published
- Severity
- 4.3 Medium
- Published
- May 28, 2026
- Updated
- Jun 26, 2026
- Reserved
- May 28, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | redhat |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4Red Hat |
|
Red Hat build of Keycloak 26.4.13Red Hat | |
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6Red Hat |
|
Red Hat build of Keycloak 26.6.3Red Hat |
References
- RHSA-2026:25097vendor-advisory
- RHSA-2026:25098vendor-advisory
- RHSA-2026:30049vendor-advisory
- RHSA-2026:30050vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-9791vdb-entry
- RHBZ#2482458issue-tracking
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