CVE-2026-37982 (GCVE-0-2026-37982)
Vulnerability from cvelistv5
Published
2026-05-19 10:52
Modified
2026-05-20 16:08
Summary
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
https://access.redhat.com/errata/RHSA-2026:19596 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:19597 vendor-advisory, x_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-37982 vdb-entry, x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2455329 issue-tracking, x_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.12-1   < *
    cpe:/a:redhat:build_keycloak:26.4::el9
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   Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-17   < *
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
   Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-17   < *
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
   Red Hat Red Hat build of Keycloak 26.4.12     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Show details on NVD website


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