by Kastro
Paper/Archive/CVE-2026-34387

CVE-2026-34387

fleetdm fleet — Fleet vulnerable to OS command injection via crafted software package metadata in uninstall scripts

EPSS 1%CVSS 9.8
critical.is priorityof 100
44
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 71.0.710 × 2014.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE 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

ProductAffectedFixed inSource
fleet< 4.81.1–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub_M (CNA)5.7CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/fleetdm/fleet/security/advisories/GHSA-7rhw-5mpv-gp4h