Yüksek CVSS 7.5

CVE-2026-7507: Build Of Keycloak: sahtecilikle kimlik doğrulama atlatma

Yayın: 19 Mayıs 2026 15:16 · Güncelleme: 6 Kasım 2026 10:19

Açıklama (NVD)

A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.

Özet bilgiler

Ürün: Redhat Build Of Keycloak
CVSS v3.1: 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: %0,84 (yüzdelik 58)
CWE: CWE-290
Yama: Yok / bilinmiyor

Etkilenen sürümler

Ürün	Başlangıç	Bitiş	Düzeltildi
redhat-build-of-keycloak	26.4	—	26.4.12

Kaynaklar

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