CVE-2026-47092
Claude HUD 0.0.12 Arbitrary Command Execution via COMSPEC Environment Variable
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.
INFO
Published Date :
May 18, 2026, 8:16 p.m.
Last Modified :
June 2, 2026, 7:08 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Claude HUD to a version patched after commit 234d9aa.
- Avoid setting the COMSPEC environment variable manually.
- Validate all user inputs that influence command execution.
- Restrict environment variable modification privileges.
Public PoC/Exploit Available at Github
CVE-2026-47092 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-47092.
| URL | Resource |
|---|---|
| https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30 | Patch |
| https://github.com/jarrodwatts/claude-hud/issues/485 | Issue Tracking |
| https://github.com/jarrodwatts/claude-hud/pull/487 | Issue Tracking Patch |
| https://www.vulncheck.com/advisories/claude-hud-arbitrary-command-execution-via-comspec-environment-variable | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-47092 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-47092
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Writeup for CVEs
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-47092 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-47092 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 02, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:jarrodwatts:claude_hud:*:*:*:*:*:claude_code:*:* versions up to (including) 0.0.12 Added Reference Type VulnCheck: https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30 Types: Patch Added Reference Type VulnCheck: https://github.com/jarrodwatts/claude-hud/issues/485 Types: Issue Tracking Added Reference Type VulnCheck: https://github.com/jarrodwatts/claude-hud/pull/487 Types: Issue Tracking, Patch Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/claude-hud-arbitrary-command-execution-via-comspec-environment-variable Types: Third Party Advisory -
New CVE Received by [email protected]
May. 18, 2026
Action Type Old Value New Value 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. Added CVSS V4.0 AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-427 Added Reference https://github.com/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30 Added Reference https://github.com/jarrodwatts/claude-hud/issues/485 Added Reference https://github.com/jarrodwatts/claude-hud/pull/487 Added Reference https://www.vulncheck.com/advisories/claude-hud-arbitrary-command-execution-via-comspec-environment-variable