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.

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
jarrodwatts claude-hud affected
Version Status Constraints
0 affected ≤ 0.0.12
234d9aad919b51326a43bcf90b45ae35c23afc30 unaffected —

No data.

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30 cve-icon cve-icon
https://github.com/jarrodwatts/claude-hud/issues/485 cve-icon cve-icon
https://github.com/jarrodwatts/claude-hud/pull/487 cve-icon cve-icon
https://www.vulncheck.com/advisories/claude-hud-arbitrary-command-execution-via-comspec-environment-variable cve-icon cve-icon
History

Mon, 18 May 2026 20:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Claude HUD 0.0.12 Arbitrary Command Execution via COMSPEC Environment Variable
Weaknesses CWE-427
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.3, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-18T19:46:48.302Z

Reserved: 2026-05-18T19:22:26.747Z

Link: CVE-2026-47092

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-18T20:16:40.040

Modified: 2026-05-18T20:19:31.307

Link: CVE-2026-47092

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-18T22:00:12Z

Weaknesses