CVE-2026-34387
Critical · 9.8CVSS
9.8
EPSS
1.8%
Published
Mar 27, 2026
CISA due date
—
The record
Fleet is open source device management software. Prior to 4.81.1, a command injection vulnerability in Fleet's software installer pipeline allows an attacker to achieve arbitrary code execution as root (macOS/Linux) or SYSTEM (Windows) on managed hosts when an uninstall is triggered for a crafted software package. Version 4.81.1 patches the issue.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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