CVE-2026-18972

CRITICAL 9.6

Velociraptor authenticated identity-spoofing vulnerability

CVSS Score

9.6

EPSS Score

0.0%

EPSS Percentile

0th

An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header \"Grpc-Metadata-USER\". This can lead to an account takeover attack from a user with low privileges to administrator.

CWE	CWE-290
Vendor	rapid7
Product	velociraptor
Published	Aug 11, 2026
Last Updated	Aug 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

Rapid7 / Velociraptor

0 < 0.77.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

docs.velociraptor.app: http://docs.velociraptor.app/announcements/advisories/cve-2026-18972/

Credits

Yuval Miller Leon Kayaliev