High severity · published Sep 16, 2026
CVE-2026-17526
Keycloak-services: keycloak-services: privilege escalation via impersonation role allows takeover of realm administrator accounts
7.2
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat build of Keycloak 26.4 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat build of Keycloak 26.6 · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-17526
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-17526
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
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