CVE-2026-47092 json
Claude HUD 0.0.12 Arbitrary Command Execution via COMSPEC Environment Variable
published 2026-05-18 5 mo ago modified 2026-11-08 26 h ago also EUVD-2026-30802
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- github.com/jarrodwatts/claude-hud@234d9aa commit
- github.com/jarrodwatts/claude-hud#487 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.3 | 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 |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 7.3 | 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/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 |
Affected products
- jarrodwatts claude-hud
Classification
- Weakness
-
- CWE-427 Uncontrolled Search Path Element
References
-
github.com
/jarrodwatts/claude-hud/pull/487
issue-tracking, patch
-
github.com
/jarrodwatts/claude-hud/commit/234d9aad919b51326a43bcf90b45ae35c23afc30
patch
-
github.com
/jarrodwatts/claude-hud/issues/485
issue-tracking
-
vulncheck.com
/advisories/claude-hud-arbitrary-command-execution-via-comspec-environment-variable
third-party-advisory
Sources
- CVE List CVE-2026-47092
- NVD CVE-2026-47092
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