Keycloak: keycloak: information disclosure due to user profile permission bypass
Summary
| CVE | CVE-2026-9088 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-05 08:16:30 UTC |
| Updated | 2026-06-26 08:16:26 UTC |
| Description | A flaw was found in org.keycloak.services. An administrator with delegated access to read group memberships and users can bypass user profile permissions by accessing the group members endpoint. This allows the administrator to view user attributes that are explicitly configured to be denied, leading to information disclosure. |
Risk And Classification
Primary CVSS: v3.1 2.7 LOW from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.003480000 probability, percentile 0.266680000 (date 2026-06-29)
Problem Types: CWE-1220 | CWE-1220 Insufficient Granularity of Access Control
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 2.7 | LOW | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
| 3.1 | CNA | CVSS | 2.7 | LOW | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat Build Of Keycloak 26.4 | unaffected 26.4.13-1 * rpm | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.4 | unaffected 26.4-19 * rpm | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.4 | unaffected 26.4-19 * rpm | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.4.13 | Not specified | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.6 | unaffected 26.6.3-3 * rpm | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.6 | unaffected 26.6-6 * rpm | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.6 | unaffected 26.6-6 * rpm | Not specified |
| CNA | Red Hat | Red Hat Build Of Keycloak 26.6.3 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/errata/RHSA-2026:25098 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:25097 | [email protected] | access.redhat.com | |
| access.redhat.com/security/cve/CVE-2026-9088 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:30049 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:30050 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Red Hat would like to thank Hadley So for reporting this issue. (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-05-20T15:01:25.568Z | Reported to Red Hat. |
| CNA | 2026-06-05T07:45:40.116Z | Made public. |
Workarounds
CNA: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
There are currently no legacy QID mappings associated with this CVE.