cvedb.io
CVE-2026-26191
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-05-14T20:17:02.173 · Last modified 2026-06-17T10:25:54.970

Summary

Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet's software installer pipeline could allow a crafted software package to execute arbitrary commands as root (macOS/Linux) or SYSTEM (Windows) on managed endpoints when an uninstall is triggered. When a software package (.pkg, .deb, .rpm, .exe, or .msi) is uploaded to Fleet, metadata is extracted from the package binary and used to generate uninstall scripts. In affected versions, this metadata is not properly sanitized before being included in the generated scripts. A specially crafted package containing malicious values in its metadata fields could result in unintended command execution when the uninstall script runs on managed endpoints. Version 4.81.0 contains a patch. If an immediate upgra

Affected products

fleetdm — fleet

Does this affect you?

Add your gear to cvedb and we'll alert you only when fleetdm ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.