Fleet's team maintainer can transfer hosts from any team via missing source team authorization
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.
Summary
Fleet is open source device management software. Prior to 4.81.1, a broken access control vulnerability in Fleet's host transfer API allows a team maintainer to transfer hosts from any team into their own team, bypassing team isolation boundaries. Once transferred, the attacker gains full control over the stolen hosts, including the ability to execute scripts with root privileges. Version 4.81.1 patches the issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| fleetdm | fleet | before 4.81.1 | 4.81.1 | Patch available | CNA |
| — | github.com/fleetdm/fleet/v4 (Go) | before 4.81.1 | 4.81.1 | Patch available | GHSA-m2h6-4xpq-qw3m |
- fleet Vendorfleetdm Affected before 4.81.1 Fixed in 4.81.1 Patch available CNA
- github.com/fleetdm/fleet/v4 (Go) Vendor— Affected before 4.81.1 Fixed in 4.81.1 Patch available GHSA-m2h6-4xpq-qw3m
Remediation
- Fix · CNA fleet (fleetdm) Fixed in 4.81.1
- Fix · GHSA-m2h6-4xpq-qw3m github.com/fleetdm/fleet/v4 (Go) Fixed in 4.81.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-29180
- 2026-10-03 Alias added: GHSA-m2h6-4xpq-qw3m
References
More fleetdm Fleet vulnerabilities
- TI-2026-65639 Fleet before 4.87.0 Authentication Bypass via Device Identifiers CVSS 4.0CRITICAL 9.3
- TI-2026-18942 Fleet has a JWT signature bypass vulnerability in Azure AD MDM enrollment CVSS 4.0CRITICAL 9.3
- TI-2020-16097 SAML authentication vulnerability in Fleet CVSS 3.1CRITICAL 10.0
- TI-2026-21066 Fleet server may terminate unexpectedly when handling certain gRPC requests CVSS 4.0HIGH 8.7
- TI-2026-21065 Fleet's unbounded request body read allows remote Denial of Service CVSS 4.0HIGH 8.7
- TI-2026-20084 Fleet Windows MDM Azure AD JWT Authentication Bypass CVSS 4.0HIGH 8.2
Sources
- CVE-2026-29180 · CVE Program
- CVE-2026-29180 · NVD
- FIRST EPSS
- GHSA-m2h6-4xpq-qw3m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences