CVE-2026-9799

Katalog CVE

CVSS 4.6 · Medium EPSS 0,29%

Kerentanan Authorization Bypass Through User-Controlled Key pada redhat build of keycloak. Skor CVSS 3.1 4.6 (Medium) menurut redhat.com.

Deskripsi (NVD)

A flaw was found in org.keycloak.authorization. An authenticated user with a granted User-Managed Access (UMA) permission ticket for one resource can exploit this by using a specific permission request prefix to bypass per-resource access control. This allows the user to gain unauthorized access to all resources of that type within the same resource server, even if they do not have a ticket for those specific resources. This vulnerability requires the resource server to be configured in PERMISSIVE policy enforcement mode and affects typed resources with ownerManagedAccess enabled, where no explicit policy protects the resource type. The primary consequence is unauthorized information disclosure or modification of resources.

Rincian

Terbit di NVD

25 Juni 2026

Terakhir diubah

1 Juli 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 20,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/errata/RHSA-2026:30049 advisory vendor
• https://access.redhat.com/errata/RHSA-2026:30050 advisory vendor
• https://access.redhat.com/errata/RHSA-2026:30083 advisory vendor
• https://access.redhat.com/errata/RHSA-2026:30084 advisory vendor
• https://access.redhat.com/security/cve/CVE-2026-9799 advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=2482471 advisory vendor