CVE-2026-37982

MediumCVSS 6.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-294

Affected software

No affected versions have been published.

Timeline

Published
May 19, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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