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.
References
| Link | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:19596 | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2026:19597 | Vendor Advisory |
| https://access.redhat.com/security/cve/CVE-2026-37982 | Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2455329 | Vendor Advisory |
Configurations
History
03 Jun 2026, 19:53
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:* | |
| First Time |
Redhat
Redhat build Of Keycloak |
|
| References | () https://access.redhat.com/errata/RHSA-2026:19596 - Vendor Advisory | |
| References | () https://access.redhat.com/errata/RHSA-2026:19597 - Vendor Advisory | |
| References | () https://access.redhat.com/security/cve/CVE-2026-37982 - Vendor Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2455329 - Vendor Advisory |
20 May 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
20 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
19 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-294 |
19 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-19 12:16
Updated : 2026-06-03 19:53
NVD link : CVE-2026-37982
Mitre link : CVE-2026-37982
CVE.ORG link : CVE-2026-37982
JSON object : View
Products Affected
redhat
- build_of_keycloak
CWE
CWE-294
Authentication Bypass by Capture-replay