CVE-2026-26191
Fleet vulnerable to OS command injection in software packages in github.com/fleetdm/fleet
EPSS 0.77%
Description
Fleet vulnerable to OS command injection in software packages in github.com/fleetdm/fleet
How to fix CVE-2026-26191
To remediate CVE-2026-26191, upgrade the affected package to a fixed version below.
- Go/github.com/fleetdm/fleet/v4—upgrade to 4.81.1 or later
- Go/github.com/fleetdm/fleet/v4—upgrade to 4.81.1 or later
Is CVE-2026-26191 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.81.1
- from 0, < 4.81.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |