CVE-2026-1609

Katalog CVE

CVSS 8.1 · High EPSS 0,56%

Kerentanan Improper Access Control pada redhat build of keycloak. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

A flaw was found in Keycloak. When the JSON Web Token (JWT) authorization grant preview feature is enabled and a user account is disabled, Keycloak fails to validate the user’s disabled status during JWT authorization grant processing. A remote attacker with low privileges can exploit this improper access control vulnerability by presenting a valid assertion token from an external identity provider to obtain a JWT for a disabled user. This allows unauthorized access to sensitive resources.

Rincian

Terbit di NVD

16 Juli 2026

Terakhir diubah

9 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

8.1 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-284: Improper Access Control

EPSS (30 hari)

0,56% peluang dieksploitasi; lebih tinggi dari 45,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-1609 advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=2435257 issue tracking · advisory vendor
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1609.json advisory vendor
• https://github.com/keycloak/keycloak/issues/46144 issue tracking
• https://github.com/keycloak/keycloak/releases/tag/26.5.3 release notes