CVE-2026-109082

Katalog CVE

CVSS 6.8 · Medium EPSS 0,25%

Kerentanan Improper Authentication. Skor CVSS 3.1 6.8 (Medium) menurut redhat.com.

Deskripsi (NVD)

A flaw was found in the Client-Initiated Backchannel Authentication CIBA implementation within the keycloak-services component of Keycloak. This component handles advanced authentication flows where a client initiates a login on behalf of a user. The issue occurs because Keycloak fails to verify that a client is authorized to use the CIBA flow, allowing public clients to bypass security requirements. An attacker could use this flaw to trick a user into approving a login request, eventually gaining full access to the users account without needing a client secret.

Rincian

Terbit di NVD

12 Oktober 2026

Terakhir diubah

12 Oktober 2026

Status NVD

Received

CVSS 3.1

6.8 (Medium), sumber redhat.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 14,8% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-109082
• https://bugzilla.redhat.com/show_bug.cgi?id=2549478