Vulnerability in Red Hat Build Of Keycloak
CVE-2026-37982
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 a…
EPSS: 0.000 (4.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Red Hat Build Of Keycloak
- Red Hat Build Of Keycloak 26.4 — versions 26.4.12-1, 26.4-17
- Redhat Build_of_keycloak
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-37982?
- CVE-2026-37982 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Authentication Bypass by Capture-replay. CVSS score: 6.8/10. Published 2026-05-19.
- How severe is CVE-2026-37982?
- Medium severity. CVSS v3 base score is 6.8 out of 10.