VULNERABILITY INTELLIGENCE

CVE-2026-37982

CVSS score6.8 MEDIUM
EPSS probability0.44%
CISA KEVNot currently listed
Published2026-05-19
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

A flaw was found in Keycloak. This authentication vulnerability allows a remote attacker to replay `ExecuteActionsActionToken` tokens within Keycloak's WebAuthn (Web Authentication) flow. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's account. This leads to unauthorized enrollment of a hardware-backed credential, enabling persistent account takeover.

Weakness classification

  • secalert@redhat.com: CWE-294
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-294

Primary references