CVE-2026-18571
CVE-2026-18571: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.6
Medium [CVE-2026-18571] FGAP V2 group assignment bypass during user creation
CVE-2026-18571Source published Source updated
A flaw was found in the user creation component of Keycloak when Fine-Grained Admin Permissions V2 (FGAP V2) is enabled. This issue allows a sub-administrator with permission to create users to add those users to any group, even groups the sub-administrator is not authorized to manage. This could lead to unauthorized access to sensitive information or elevated privileges for the newly created users. The Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that it requires the non-default Fine-Grained Admin Permissions V2 to be enabled and the attacker must already possess high-level sub-administrator privileges. Successful exploitation allows an attacker to bypass group membership restrictions during user creation, potentially leading to…
- Affected products in this advisory
- Red Hat build of Keycloak 26.6.7
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- rhbk/keycloak-operator-bundle:26.6.7-3
- rhbk/keycloak-rhel9:26.6-20
- rhbk/keycloak-rhel9-operator:26.6-20
- keycloak-services
4 more entries in the full advisory.
- Mitigation guidance
- 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.
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