Cloudanix VulnDB

CVE-2026-23517

High · 8.1

CVSS

8.1

EPSS

0.3%

Published

Jan 21, 2026

CISA due date

—

The record

Fleet is open source device management software. A broken access control issue in versions prior to 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 allowed authenticated users to access debug and profiling endpoints regardless of role. As a result, low-privilege users could view internal server diagnostics and trigger resource-intensive profiling operations. Fleet’s debug/pprof endpoints are accessible to any authenticated user regardless of role, including the lowest-privilege “Observer” role. This allows low-privilege users to access sensitive server internals, including runtime profiling data and in-memory application state, and to trigger CPU-intensive profiling operations that could lead to denial of service. Versions 4.78.3, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, users should put the debug/pprof endpoints behind an IP allowlist as a workaround.

Affected packages

Ecosystem Package Introduced Fixed
Go github.com/fleetdm/fleet 4.75.0 4.75.2
Go github.com/fleetdm/fleet 4.76.0 4.76.2
Go github.com/fleetdm/fleet 4.77.0 4.77.1
Go github.com/fleetdm/fleet 4.78.0 4.78.3
Go github.com/fleetdm/fleet/v4 0 4.78.3-0.20260112221730-5c030e32a3a9
Go github.com/fleetdm/fleet/v4 4.75.0 4.75.2
go github.com/fleetdm/fleet 4.75.0 4.75.2
go github.com/fleetdm/fleet 4.76.0 4.76.2
go github.com/fleetdm/fleet 4.77.0 4.77.1
go github.com/fleetdm/fleet 4.78.0 4.78.3
openSUSE:Leap 15.6 govulncheck-vulndb 0 0.0.20260205T172317-150000.1.146.1

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