CVE-2026-9088

LOW 2.7

Keycloak: keycloak: information disclosure due to user profile permission bypass

CVSS Score

2.7

EPSS Score

0.0%

EPSS Percentile

1th

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.

CWE	CWE-1220
Vendor	red hat
Product	red hat build of keycloak
Published	Jun 5, 2026
Last Updated	Jun 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

Red Hat / Red Hat Build of Keycloak

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-9088 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2480179

Credits

Red Hat would like to thank Hadley So for reporting this issue.