Medium severity · published Oct 1, 2026
CVE-2026-103265
Fleet before 4.89.0 Information Disclosure via MDM Command Results
4.3
CVSS
0.2%
EPSS
No
On KEV
Description
Fleet versions before 4.89.0 fail to properly filter MDM command results by team authorization in the commands/results endpoint. Team-scoped users can read MDM command results for hosts on other teams when a shared command UUID targets hosts across multiple teams, exposing host UUIDs, command payloads, and device responses.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FL
fleet · fleetdm
before 4.89.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103265
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-103265
vendor-advisory
https://github.com/fleetdm/fleet/security/advisories/GHSA-97fg-h5wh-2399
third-party-advisory
https://www.vulncheck.com/advisories/fleet-before-4.89.0-information-disclosure-via-mdm-command-results
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