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CVE-2026-34388
Published: Mar 27, 2026
Modified: Mar 31, 2026
PUBLISHED
Description
Fleet is open source device management software. Prior to 4.81.0, a denial-of-service vulnerability in Fleet's gRPC Launcher endpoint allows an authenticated host to crash the entire Fleet server process by sending an unexpected log type value. The server terminates immediately, disrupting all connected hosts, MDM enrollments, and API consumers. Version 4.81.0 patches the issue.
| Vendor | Product | Versions |
|---|---|---|
fleetdm | fleet | affected < 4.81.0 |
Weaknesses (CWE)
References
https://github.com/fleetdm/fleet/security/advisories/GHSA-w254-4hp5-7cvv
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