CVE-2026-16093

Katalog CVE

CVSS 5.4 · Medium EPSS 0,39%

Kerentanan Reliance on Untrusted Inputs in a Security Decision pada redhat build of keycloak, redhat data grid +2 lainnya. Skor CVSS 3.1 5.4 (Medium) menurut redhat.com.

Deskripsi (NVD)

Keycloak provides a mechanism called Client Policies to enforce security requirements on clients, such as requiring them to use signed JWTs for authentication. A flaw was discovered where this enforcement can be bypassed. An attacker with valid client credentials can provide a fake, unsigned assertion header that tricks the system into thinking the policy requirements have been met. This allows the attacker to authenticate using simpler methods like a client secret even when the administrator has mandated more secure, signed assertions.

Rincian

Terbit di NVD

17 Juli 2026

Terakhir diubah

16 September 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-807: Reliance on Untrusted Inputs in a Security Decision

EPSS (30 hari)

0,39% peluang dieksploitasi; lebih tinggi dari 31,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-16093 advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=2501729 issue tracking · advisory vendor
• https://access.redhat.com/errata/RHSA-2026:68277
• https://access.redhat.com/errata/RHSA-2026:68278