CVE-2026-16442

Katalog CVE

CVSS 9.8 · Critical EPSS 0,31%

Kerentanan Origin Validation Error pada redhat build of keycloak. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

A flaw was found in the SAML broker component of Keycloak, which is used to manage identity federation and user authentication. The issue occurs because the IdP-initiated Single Sign-On endpoint fails to check if a provider is restricted to account linking only. This allows an attacker with control over a linked upstream identity to bypass login restrictions and gain full access to a local user account.

Rincian

Terbit di NVD

5 Agustus 2026

Terakhir diubah

10 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-346: Origin Validation Error

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 22,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/errata/RHSA-2026:50846 advisory vendor
• https://access.redhat.com/errata/RHSA-2026:50847 advisory vendor
• https://access.redhat.com/errata/RHSA-2026:50848 advisory vendor
• https://access.redhat.com/errata/RHSA-2026:50849 advisory vendor
• https://access.redhat.com/security/cve/CVE-2026-16442 advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=2503138 issue tracking · advisory vendor