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CVE PROGRAM SOURCE RECORD6.6 Medium

CVE-2026-34388

Fleet vulnerable to Denial of Service via unhandled gRPC log type in launcher endpoint

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

fleetdm fleet

  • < 4.81.0affected

References