CVE-2026-23517
published 2026-01-21CVE-2026-23517: 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…
PriorityP348high8.1CVSS 3.1
AVNACLPRLUINSUCHINAH
EPSS
0.25%
15.7th percentile
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
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fleetdm | fleet | < 4.53.3 | 4.53.3 |
| fleetdm | fleet | — | — |
| fleetdm | fleet | — | — |
| fleetdm | fleet | — | — |
| fleetdm | fleet | — | — |
| fleetdm | fleet | — | — |
| fleetdm | fleet | >= 4.75.0 < 4.75.2 | 4.75.2 |
| fleetdm | fleet | >= 4.76.0 < 4.76.2 | 4.76.2 |
| fleetdm | fleet | >= 4.78.0 < 4.78.3 | 4.78.3 |
| github.com | fleetdm_fleet | >= 4.75.0 < 4.75.2 | 4.75.2 |
| github.com | fleetdm_fleet | >= 4.76.0 < 4.76.2 | 4.76.2 |
| github.com | fleetdm_fleet | >= 4.77.0 < 4.77.1 | 4.77.1 |
| github.com | fleetdm_fleet | >= 4.78.0 < 4.78.3 | 4.78.3 |
| github.com | fleetdm_fleet_v4 | >= 0 < 4.78.3-0.20260112221730-5c030e32a3a9 | 4.78.3-0.20260112221730-5c030e32a3a9 |
| github.com | fleetdm_fleet_v4 | >= 4.75.0 < 4.75.2 | 4.75.2 |
| github.com | fleetdm_fleet_v4 | >= 4.76.0 < 4.76.2 | 4.76.2 |
| github.com | fleetdm_fleet_v4 | >= 4.77.0 < 4.77.1 | 4.77.1 |
| github.com | fleetdm_fleet_v4 | >= 4.78.0 < 4.78.3 | 4.78.3 |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
nvdv4.06.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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OSV
Fleet has an Access Control vulnerability in debug/pprof endpoints in github.com/fleetdm/fleet
osv·2026-02-03
CVE-2026-23517 Fleet has an Access Control vulnerability in debug/pprof endpoints in github.com/fleetdm/fleet
Fleet has an Access Control vulnerability in debug/pprof endpoints in github.com/fleetdm/fleet
Fleet has an Access Control vulnerability in debug/pprof endpoints in github.com/fleetdm/fleet
OSV
Fleet has an Access Control vulnerability in debug/pprof endpoints
osv·2026-01-20
CVE-2026-23517 [HIGH] Fleet has an Access Control vulnerability in debug/pprof endpoints
Fleet has an Access Control vulnerability in debug/pprof endpoints
### Summary
A broken access control issue in Fleet 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.
### Impact
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.
### Patches
- 4.78.3
- 4.77.1
- 4.76.2
- 4.75.2
- 4.53.3
### Workarounds
If an immediat
GHSA
Fleet has an Access Control vulnerability in debug/pprof endpoints
ghsa·2026-01-20
CVE-2026-23517 [HIGH] CWE-862 Fleet has an Access Control vulnerability in debug/pprof endpoints
Fleet has an Access Control vulnerability in debug/pprof endpoints
### Summary
A broken access control issue in Fleet 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.
### Impact
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.
### Patches
- 4.78.3
- 4.77.1
- 4.76.2
- 4.75.2
- 4.53.3
### Workarounds
If an immediat
No detection rules found.
No public exploits indexed.
2026-01-21
Published