Identity Spoofing Vulnerability in Velociraptor by Velociraptor Labs
CVE-2026-18972

9.6CRITICAL

Key Information:

Vendor

Rapid7

Status
Velociraptor
Vendor
CVE Published:
11 August 2026

What is CVE-2026-18972?

An authenticated attacker can exploit a vulnerability in Velociraptor that allows them to spoof the identity of another GUI user. By sending requests with the custom header "Grpc-Metadata-USER", the attacker can perform actions masquerading as a different user. This exploitation risks granting unauthorized access, enabling low-privileged users to escalate their privileges and potentially take over administrator accounts.

Affected Version(s)

Velociraptor 0 < 0.77.2

References

http://docs.velociraptor.app/announcements/advisories/cve...

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yuval Miller
Leon Kayaliev
.