VulnerabilityAwaiting Analysis

CVE-2026-18972

An authenticated attacker can spoof another GUI user's identity by sending their request with the custom header \"Grpc-Metadata-USER\".

CRITICAL 9.6EPSS 6.06%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (6.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
EPSS: 6.06% probability · 93th percentile
CISA KEV: Not listed
Weakness: CWE-290
Source: cve@rapid7.com

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.