7.4

CVE-2026-4282

Keycloak: keycloak: privilege escalation via forged authorization codes due to singleuseobjectprovider isolation flaw

A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Build Of Keycloak Version- SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.2 SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.2.15 SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.4 SwEditiontext-only
Redhat ≫ Build Of Keycloak Version26.4.11 SwEditiontext-only
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.34
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 7.4 2.2 5.2
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.4 2.2 5.2
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-653 Improper Isolation or Compartmentalization

The product does not properly compartmentalize or isolate functionality, processes, or resources that require different privilege levels, rights, or permissions.

https://access.redhat.com/security/cve/CVE-2026-4282
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2448061
Vendor Advisory
Issue Tracking
https://access.redhat.com/errata/RHSA-2026:6477
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6478
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6475
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6476
Vendor Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4282.json