CVE-2026-34388
Fleet vulnerable to Denial of Service via unhandled gRPC log type in launcher endpoint in github.com/fleetdm/fleet
EPSS 0.06%
Description
Fleet vulnerable to Denial of Service via unhandled gRPC log type in launcher endpoint in github.com/fleetdm/fleet
How to fix CVE-2026-34388
To remediate CVE-2026-34388, upgrade the affected package to a fixed version below.
- Go/github.com/fleetdm/fleet/v4—upgrade to 4.81.0 or later
- Go/github.com/fleetdm/fleet/v4—upgrade to 4.81.0 or later
Is CVE-2026-34388 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.81.0
- from 0, < 4.81.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U |