AUGUST 16, 2026
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Case File

CVE-2026-18639

HIGH · CVSS 7.3 EPSS 0.26%

Source: NVD + CISA KEV + EPSS · Published 2026-08-11 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

Velociraptor's integration with certain OpenID Connect Identity Providers (IdPs) is vulnerable due to improper handling of the email claim, which can be altered without verification by some IdPs. This flaw enables an attacker to impersonate another user, leading to potential account takeover. Organizations using Velociraptor with these IdPs should prioritize immediate remediation to prevent unauthorized access to sensitive data.

CVE
CVE-2026-18639
Severity
HIGH
CVSS
7.3
EPSS
0.26%

Original NVD 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.