CVE-2026-37979: redhat build of keycloak

csirt@kutim:~/threat-intel/cve/CVE-2026-37979

CVSS 6.5 · Medium EPSS 0,41%

Kerentanan Improper Access Control pada redhat build of keycloak. Skor CVSS 3.1 6.5 (Medium) menurut redhat.com.

Deskripsi (NVD)

A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other resource servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited remotely by any confidential client in the realm with valid credentials.

Rincian

Terbit di NVD: 19 Mei 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 6.5 (Medium), sumber redhat.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-284: Improper Access Control
EPSS (30 hari): 0,41% peluang dieksploitasi; lebih tinggi dari 33,8% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
redhat	build of keycloak	Versi 26.4 hingga sebelum 26.4.12

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://access.redhat.com/errata/RHSA-2026:19596 advisory vendor
https://access.redhat.com/errata/RHSA-2026:19597 advisory vendor
https://access.redhat.com/security/cve/CVE-2026-37979 advisory vendor
https://bugzilla.redhat.com/show_bug.cgi?id=2455328 advisory vendor

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.