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CVE-2026-4634

HIGH(7.5)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Risk Signal Score19/100 — NIEDRIG
  • CVSS 7.5 — Hoch

Erwähnungen (letzte 60 Tage)

Artikel

EPSS-Score

0.6%

Exploit-Wahrscheinlichkeit (30 Tage)

CVSS Score

7.5

Technische Schwere

Beschreibung

A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high resource consumption and prolonged processing times, ultimately resulting in a Denial of Service (DoS) for the Keycloak server.

Betroffene Produkte

  • cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.2:*:*:*:text-only:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.2.15:*:*:*:text-only:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:text-only:*:*:*
  • cpe:2.3:a:redhat:build_of_keycloak:26.4.11:*:*:*:text-only:*:*:*

Referenzen