CVE-2026-47092 HIGH

CVE-2026-47092: Claude HUD 0.0.12 Arbitrary Command Execution via COMSPEC Environment Variable

Vendor Jarrodwatts
Product claude-hud
Weakness CWE-427
Published May 18, 2026
Last update May 19, 2026

CVSS base score

7.3/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Claude HUD through 0.0.12, patched in commit 234d9aa, contains a command injection vulnerability that allows local attackers to execute arbitrary commands by manipulating the COMSPEC environment variable. Attackers can set COMSPEC to an arbitrary binary path before claude-hud performs its version check, causing execFile() to execute the attacker-supplied executable with cmd.exe arguments, resulting in arbitrary code execution on Windows systems.

Key dates

02Disclosure timeline

May 18, 2026 CVE published
May 19, 2026 Record updated