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CVE-2026-7307

7.5 high SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 12

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · redhatNVD modified 2026-10-26 13:10

Affected (CPE criteria) 1

  • cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*

References 18