CVE-2026-17526

CVE-2026-17526

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.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-17526?
CVE-2026-17526 is a high-severity vulnerability, classified under Missing Authorization. CVSS score: 7.2/10. Published 2026-09-16.
How severe is CVE-2026-17526?
High severity. CVSS v3 base score is 7.2 out of 10.