GHSA-4r5r-ccr6-q6f6
Suggest an improvement- Source
- https://github.com/advisories/GHSA-4r5r-ccr6-q6f6
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-4r5r-ccr6-q6f6/GHSA-4r5r-ccr6-q6f6.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-4r5r-ccr6-q6f6
- Aliases
- Published
- 2026-01-20T20:55:14Z
- Modified
- 2026-03-19T08:48:11Z
- Severity
-
- 7.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Fleet has an Access Control vulnerability in debug/pprof endpoints
- Details
-
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 immediate upgrade is not possible, users should put the debug/pprof endpoints behind an IP allowlist.
For more information
If you have any questions or comments about this advisory:
Email us at security@fleetdm.com Join #fleet in osquery Slack
Credits
We thank @secfox-ai for responsibly reporting this issue.
- Database specific
{ "cwe_ids": [ "CWE-862", "CWE-863" ], "github_reviewed": true, "github_reviewed_at": "2026-01-20T20:55:14Z", "nvd_published_at": "2026-01-21T22:15:49Z", "severity": "HIGH" }- References
Affected packages
Go
github.com/fleetdm/fleet
Package
- Name
- github.com/fleetdm/fleet
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/fleetdm/fleet
github.com/fleetdm/fleet
Package
- Name
- github.com/fleetdm/fleet
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/fleetdm/fleet
github.com/fleetdm/fleet
Package
- Name
- github.com/fleetdm/fleet
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/fleetdm/fleet
github.com/fleetdm/fleet
Package
- Name
- github.com/fleetdm/fleet
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/fleetdm/fleet
github.com/fleetdm/fleet/v4
Package
- Name
- github.com/fleetdm/fleet/v4
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/fleetdm/fleet/v4