CVE-2026-18967

Katalog CVE

CVSS 8.1 · High EPSS 0,23%

Kerentanan Authentication Bypass by Capture-replay pada redhat build of keycloak, redhat jboss enterprise application platform expansion pack. Skor CVSS 3.1 8.1 (High) menurut NVD.

Deskripsi (NVD)

A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused assertion to replay it multiple times. Successful exploitation could allow an attacker to hijack a user's session and gain unauthorized access to the system as that user.

Rincian

Terbit di NVD

6 Agustus 2026

Terakhir diubah

10 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-294: Authentication Bypass by Capture-replay

EPSS (30 hari)

0,23% peluang dieksploitasi; lebih tinggi dari 13,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-18967 advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=2511604 permissions required