CVE-2026-9791
MEDIUM EPSS 11.8%
Published May 28, 20261mo ago · Modified Jun 17, 20262w ago
4.3 CVSS 3.1
Published May 28, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago
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 Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
11.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| redhat | build_of_keycloak | * | any |
References 4
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:25097
- access.redhat.com https://access.redhat.com/errata/RHSA-2026:25098
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-9791
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2482458
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.