PT-2026-41872 · Red Hat · Keycloak

CVE-2026-37982

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Published

2026-05-19

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Updated

2026-08-25

CVSS v3.1

6.8

Medium

VectorAV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Keycloak (affected versions not specified)
Description A flaw in the WebAuthn (Web Authentication) flow allows a remote attacker to replay ExecuteActionsActionToken tokens. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's account, leading to the unauthorized enrollment of a hardware-backed credential and persistent account takeover.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Weakness Enumeration

CWE-294

Related Identifiers

BIT-KEYCLOAK-2026-37982
CVE-2026-37982
ECHO-8443-C7B2-28C5
GHSA-W4P5-RFH6-CWRV

Affected Products

Keycloak