VULNERABILITY INTELLIGENCE

CVE-2026-16089

CVSS score5.4 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-07-17
Last modified2026-09-16
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N

Description

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.

Weakness classification

  • secalert@redhat.com: CWE-472
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-384

Primary references