CVE-2026-9088: A flaw was found in org.keycloak.services. An administrator with delegated access to read group memberships and users can bypass user profile permissi...

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.

Metrics

CVSS 3.1

2.7/10

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

EPSS Probability

0.35%

27.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1220

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

Vendor	Product	Versions
Red Hat	Red Hat build of Keycloak 26.4	All versions
Red Hat	Red Hat build of Keycloak 26.6	All versions

References

Timeline

Published: Jun 5, 2026
Last Modified: Jul 23, 2026
Status: Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-9088?

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.

How severe is CVE-2026-9088?

CVE-2026-9088 has a CVSS score of 2.7/10 (LOW severity). The EPSS model estimates a 0.35% probability of exploitation in the next 30 days.

How do I fix CVE-2026-9088?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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