CVE-2026-17526
Keycloak-services: keycloak-services: privilege escalation via impersonation role allows takeover of realm administrator accounts
CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th
Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, including the ability to manage users, clients, and roles.
| CWE | CWE-862 |
| Vendor | red hat |
| Product | red hat build of keycloak 26.4 |
| Published | Sep 16, 2026 |
| Last Updated | Sep 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for red hat red hat build of keycloak 26.4
Be the first to know when new high vulnerabilities affecting red hat red hat build of keycloak 26.4 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4
All versions affected Red Hat / Red Hat build of Keycloak 26.4.16
All versions affected Red Hat / Red Hat build of Keycloak 26.4.16
All versions affected Red Hat / Red Hat build of Keycloak 26.6
All versions affected Red Hat / Red Hat build of Keycloak 26.6
All versions affected Red Hat / Red Hat build of Keycloak 26.6
All versions affected Red Hat / Red Hat build of Keycloak 26.6.7
All versions affected Red Hat / Red Hat build of Keycloak 26.6.7
All versions affected Red Hat / Red Hat build of Keycloak 26.6.7
All versions affected Red Hat / Red Hat Data Grid 8
All versions affected Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Pack
All versions affected Red Hat / Red Hat Single Sign-On 7
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68276 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68277 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68278 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:68280 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-17526 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2507409
Credits
Red Hat would like to thank Orionexe for reporting this issue.