CVE-2026-37982
Published: May 19, 2026
Modified: May 20, 2026
CVSS v3.1
6.8
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.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4.12-1 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-17 - < * |
Red Hat | Red Hat build of Keycloak 26.4 | unaffected 26.4-17 - < * |
Red Hat | Red Hat build of Keycloak 26.4.12 | All versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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