Description
Fleet is open source device management software. Prior to 4.81.0, Fleet contained multiple unauthenticated HTTP endpoints that read request bodies without enforcing a size limit. An unauthenticated attacker could exploit this behavior by sending large or repeated HTTP payloads, causing excessive memory allocation and resulting in a denial-of-service (DoS) condition. Version 4.81.0 patches the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| fleetdm | fleet | < 4.81.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260402T184258-150000.1.158.1 | SUSE-SU-2026:1205-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/fleetdm/fleet/v4 | < 4.43.5-0.20260113202849-bbc1aef2987d | 4.43.5-0.20260113202849-bbc1aef2987d | GHSA-99hj-44vg-hfcp |
| Go | github.com/fleetdm/fleet/v4 | all versions | — | GO-2026-4889 |
Advisories 3
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:1205-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Apr 8, 2026
- WID-SEC-2026-0902 Fleet: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 29, 2026