HIGHVulnerability
Verified
Global
NVD HIGH: CVE-2026-34388 — Fleet is open source device management software. Prior to 4.81.0, a denial-of-se...
Friday, March 27, 2026 at 08:16 PM UTC·Source: NIST NVD
Updated: Friday, April 3, 2026 at 02:38 AM UTC
Executive Summary
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.
Analysis
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.
CVSS Score: 7.5. Published: 2026-03-27T20:16:35.800.