CVE-2026-47092

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.

CVSS 4.0

7.3CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-25)

CWE

CWE-427

Published

2026-05-18

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• jarrodwatts:claude_hud

References

• https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30
• https://github.com/jarrodwatts/claude-hud/issues/485
• https://github.com/jarrodwatts/claude-hud/pull/487
• https://www.vulncheck.com/advisories/claude-hud-arbitrary-command-execution-via-comspec-environment-variable

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