CVE-2026-18639
HIGH
NVD
CVSS Score
7.3
Severity
HIGH
Published
Aug 11, 2026
Vendor
unknown
Description
When Velociraptor is configured to use an OIDC IdP for authentication, it uses the email claim as a username. However, some IdP allow users to change the email claim without verification. Some IdPs do not set the "email_verified" claim and do not actually verify the email. This allows a user to impersonate another user by setting their email address within the IdP, allowing account takeover.