VULNERABILITY INTELLIGENCE

CVE-2026-7307

CVSS score7.5 HIGH
EPSS probability0.88%
CISA KEVNot currently listed
Published2026-05-19
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes unavailable.

Weakness classification

  • secalert@redhat.com: CWE-1286
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-1286

Primary references