CVE-2026-18639
Published:August 11, 2026
Updated:September 01, 2026
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.
Affected Packages
https://github.com/Velocidex/velociraptor.git (GITHUB):
Affected version(s) >=v0.1 <v0.77.2Fix Suggestion:
Update to version v0.77.2www.velocidex.com/golang/velociraptor (GO):
Affected version(s) >=v0.0.0-20180811034225-ef34365e43c9 <v0.77.2Fix Suggestion:
Update to version v0.77.2Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Authentication Bypass by Spoofing
EPSS
Base Score:
0.26