Vulnerability Description
Fleet is an open-source device management platform built on osquery. In versions prior to 4.87.0, the target search endpoint (POST /api/latest/fleet/targets) returned unmasked team enroll secrets and full team configuration, including credential-bearing agent options, to low-privilege observer-class users. Other team-facing endpoints mask these fields for observers, but the target search endpoint did not apply the same sanitization, so an authenticated user with the Observer, Observer+, or Technician role, whether global or team-scoped, could retrieve the secrets and agent options by performing a target search against an observer-runnable query. With a leaked team enroll secret an attacker could enroll unauthorized hosts into the affected team, and if the team's agent options contained credentials such as AWS secret access keys or proxy passwords, those values were disclosed as well. This issue is fixed in version 4.87.0.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- http://github.com/fleetdm/fleet/commit/6a481477e8ac4bef43b5826e6240b867ac3b2379
- https://github.com/fleetdm/fleet/releases/tag/fleet-v4.87.0
- https://github.com/fleetdm/fleet/security/advisories/GHSA-88p2-jj8w-j8qg
FAQ
What is CVE-2026-48786?
CVE-2026-48786 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Fleet is an open-source device management platform built on osquery. In versions prior to 4.87.0, the target search endpoint (POST /api/latest/fleet/targets) returned unmasked team enroll secrets and ...
How severe is CVE-2026-48786?
CVE-2026-48786 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-48786?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.