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Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-22808

fleetdm/fleet is open source device management software. Prior to versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3, if Windows MDM is enabled, an unauthenticated attacker can exploit this XSS vulnerability to steal a Fleet administrator's authentication token (FLEET::auth_token) from localStorage. This could allow unauthorized access to Fleet, including administrative access, visibility into device data, and modification of configuration. Versions 4.78.2, 4.77.1, 4.76.2, 4.75.2, and 4.53.3 fix the issue. If an immediate upgrade is not possible, affected Fleet users should temporarily disable Windows MDM.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 45.8%
CVSS Severity
CVSS v3 Score 5.4
Products affected by CVE-2026-22808
  • Fleetdm » Fleet » Version: N/A
    cpe:2.3:a:fleetdm:fleet:-
  • Fleetdm » Fleet » Version: 1.0.0
    cpe:2.3:a:fleetdm:fleet:1.0.0
  • Fleetdm » Fleet » Version: 1.0.1
    cpe:2.3:a:fleetdm:fleet:1.0.1
  • Fleetdm » Fleet » Version: 1.0.2
    cpe:2.3:a:fleetdm:fleet:1.0.2
  • Fleetdm » Fleet » Version: 1.0.3
    cpe:2.3:a:fleetdm:fleet:1.0.3
  • Fleetdm » Fleet » Version: 1.0.4
    cpe:2.3:a:fleetdm:fleet:1.0.4
  • Fleetdm » Fleet » Version: 1.0.5
    cpe:2.3:a:fleetdm:fleet:1.0.5
  • Fleetdm » Fleet » Version: 1.0.6
    cpe:2.3:a:fleetdm:fleet:1.0.6
  • Fleetdm » Fleet » Version: 1.0.7
    cpe:2.3:a:fleetdm:fleet:1.0.7
  • Fleetdm » Fleet » Version: 1.0.8
    cpe:2.3:a:fleetdm:fleet:1.0.8
  • Fleetdm » Fleet » Version: 1.0.9
    cpe:2.3:a:fleetdm:fleet:1.0.9
  • Fleetdm » Fleet » Version: 2.0.0
    cpe:2.3:a:fleetdm:fleet:2.0.0
  • Fleetdm » Fleet » Version: 2.0.1
    cpe:2.3:a:fleetdm:fleet:2.0.1
  • Fleetdm » Fleet » Version: 2.0.2
    cpe:2.3:a:fleetdm:fleet:2.0.2
  • Fleetdm » Fleet » Version: 2.1.0
    cpe:2.3:a:fleetdm:fleet:2.1.0
  • Fleetdm » Fleet » Version: 2.1.1
    cpe:2.3:a:fleetdm:fleet:2.1.1
  • Fleetdm » Fleet » Version: 2.1.2
    cpe:2.3:a:fleetdm:fleet:2.1.2
  • Fleetdm » Fleet » Version: 2.2.0
    cpe:2.3:a:fleetdm:fleet:2.2.0
  • Fleetdm » Fleet » Version: 2.3.0
    cpe:2.3:a:fleetdm:fleet:2.3.0
  • Fleetdm » Fleet » Version: 2.4.0
    cpe:2.3:a:fleetdm:fleet:2.4.0
  • Fleetdm » Fleet » Version: 2.5.0
    cpe:2.3:a:fleetdm:fleet:2.5.0
  • Fleetdm » Fleet » Version: 2.6.0
    cpe:2.3:a:fleetdm:fleet:2.6.0
  • Fleetdm » Fleet » Version: 3.0.0
    cpe:2.3:a:fleetdm:fleet:3.0.0
  • Fleetdm » Fleet » Version: 3.1.0
    cpe:2.3:a:fleetdm:fleet:3.1.0
  • Fleetdm » Fleet » Version: 3.10.0
    cpe:2.3:a:fleetdm:fleet:3.10.0
  • Fleetdm » Fleet » Version: 3.10.1
    cpe:2.3:a:fleetdm:fleet:3.10.1
  • Fleetdm » Fleet » Version: 3.11.0
    cpe:2.3:a:fleetdm:fleet:3.11.0
  • Fleetdm » Fleet » Version: 3.12.0
    cpe:2.3:a:fleetdm:fleet:3.12.0
  • Fleetdm » Fleet » Version: 3.13.0
    cpe:2.3:a:fleetdm:fleet:3.13.0
  • Fleetdm » Fleet » Version: 3.2.0
    cpe:2.3:a:fleetdm:fleet:3.2.0
  • Fleetdm » Fleet » Version: 3.3.0
    cpe:2.3:a:fleetdm:fleet:3.3.0
  • Fleetdm » Fleet » Version: 3.4.0
    cpe:2.3:a:fleetdm:fleet:3.4.0
  • Fleetdm » Fleet » Version: 3.5.0
    cpe:2.3:a:fleetdm:fleet:3.5.0
  • Fleetdm » Fleet » Version: 3.5.1
    cpe:2.3:a:fleetdm:fleet:3.5.1
  • Fleetdm » Fleet » Version: 3.6.0
    cpe:2.3:a:fleetdm:fleet:3.6.0
  • Fleetdm » Fleet » Version: 3.7.0
    cpe:2.3:a:fleetdm:fleet:3.7.0
  • Fleetdm » Fleet » Version: 3.7.1
    cpe:2.3:a:fleetdm:fleet:3.7.1
  • Fleetdm » Fleet » Version: 3.7.2
    cpe:2.3:a:fleetdm:fleet:3.7.2
  • Fleetdm » Fleet » Version: 3.7.3
    cpe:2.3:a:fleetdm:fleet:3.7.3
  • Fleetdm » Fleet » Version: 3.7.4
    cpe:2.3:a:fleetdm:fleet:3.7.4
  • Fleetdm » Fleet » Version: 3.8.0
    cpe:2.3:a:fleetdm:fleet:3.8.0
  • Fleetdm » Fleet » Version: 3.9.0
    cpe:2.3:a:fleetdm:fleet:3.9.0
  • Fleetdm » Fleet » Version: 4.0.0
    cpe:2.3:a:fleetdm:fleet:4.0.0
  • Fleetdm » Fleet » Version: 4.0.1
    cpe:2.3:a:fleetdm:fleet:4.0.1
  • Fleetdm » Fleet » Version: 4.1.0
    cpe:2.3:a:fleetdm:fleet:4.1.0
  • Fleetdm » Fleet » Version: 4.10.0
    cpe:2.3:a:fleetdm:fleet:4.10.0
  • Fleetdm » Fleet » Version: 4.11.0
    cpe:2.3:a:fleetdm:fleet:4.11.0
  • Fleetdm » Fleet » Version: 4.12.0
    cpe:2.3:a:fleetdm:fleet:4.12.0
  • Fleetdm » Fleet » Version: 4.13.0
    cpe:2.3:a:fleetdm:fleet:4.13.0
  • Fleetdm » Fleet » Version: 4.13.1
    cpe:2.3:a:fleetdm:fleet:4.13.1
  • Fleetdm » Fleet » Version: 4.13.2
    cpe:2.3:a:fleetdm:fleet:4.13.2
  • Fleetdm » Fleet » Version: 4.14.0
    cpe:2.3:a:fleetdm:fleet:4.14.0
  • Fleetdm » Fleet » Version: 4.15.0
    cpe:2.3:a:fleetdm:fleet:4.15.0
  • Fleetdm » Fleet » Version: 4.16.0
    cpe:2.3:a:fleetdm:fleet:4.16.0
  • Fleetdm » Fleet » Version: 4.17.0
    cpe:2.3:a:fleetdm:fleet:4.17.0
  • Fleetdm » Fleet » Version: 4.17.1
    cpe:2.3:a:fleetdm:fleet:4.17.1
  • Fleetdm » Fleet » Version: 4.18.0
    cpe:2.3:a:fleetdm:fleet:4.18.0
  • Fleetdm » Fleet » Version: 4.19.0
    cpe:2.3:a:fleetdm:fleet:4.19.0
  • Fleetdm » Fleet » Version: 4.19.1
    cpe:2.3:a:fleetdm:fleet:4.19.1
  • Fleetdm » Fleet » Version: 4.2.0
    cpe:2.3:a:fleetdm:fleet:4.2.0
  • Fleetdm » Fleet » Version: 4.2.1
    cpe:2.3:a:fleetdm:fleet:4.2.1
  • Fleetdm » Fleet » Version: 4.2.2
    cpe:2.3:a:fleetdm:fleet:4.2.2
  • Fleetdm » Fleet » Version: 4.2.3
    cpe:2.3:a:fleetdm:fleet:4.2.3
  • Fleetdm » Fleet » Version: 4.2.4
    cpe:2.3:a:fleetdm:fleet:4.2.4
  • Fleetdm » Fleet » Version: 4.20.0
    cpe:2.3:a:fleetdm:fleet:4.20.0
  • Fleetdm » Fleet » Version: 4.20.1
    cpe:2.3:a:fleetdm:fleet:4.20.1
  • Fleetdm » Fleet » Version: 4.21.0
    cpe:2.3:a:fleetdm:fleet:4.21.0
  • Fleetdm » Fleet » Version: 4.22.0
    cpe:2.3:a:fleetdm:fleet:4.22.0
  • Fleetdm » Fleet » Version: 4.22.1
    cpe:2.3:a:fleetdm:fleet:4.22.1
  • Fleetdm » Fleet » Version: 4.23.0
    cpe:2.3:a:fleetdm:fleet:4.23.0
  • Fleetdm » Fleet » Version: 4.24.0
    cpe:2.3:a:fleetdm:fleet:4.24.0
  • Fleetdm » Fleet » Version: 4.24.1
    cpe:2.3:a:fleetdm:fleet:4.24.1
  • Fleetdm » Fleet » Version: 4.25.0
    cpe:2.3:a:fleetdm:fleet:4.25.0
  • Fleetdm » Fleet » Version: 4.26.0
    cpe:2.3:a:fleetdm:fleet:4.26.0
  • Fleetdm » Fleet » Version: 4.27.0
    cpe:2.3:a:fleetdm:fleet:4.27.0
  • Fleetdm » Fleet » Version: 4.27.1
    cpe:2.3:a:fleetdm:fleet:4.27.1
  • Fleetdm » Fleet » Version: 4.28.0
    cpe:2.3:a:fleetdm:fleet:4.28.0
  • Fleetdm » Fleet » Version: 4.28.1
    cpe:2.3:a:fleetdm:fleet:4.28.1
  • Fleetdm » Fleet » Version: 4.29.0
    cpe:2.3:a:fleetdm:fleet:4.29.0
  • Fleetdm » Fleet » Version: 4.29.1
    cpe:2.3:a:fleetdm:fleet:4.29.1
  • Fleetdm » Fleet » Version: 4.3.0
    cpe:2.3:a:fleetdm:fleet:4.3.0
  • Fleetdm » Fleet » Version: 4.3.1
    cpe:2.3:a:fleetdm:fleet:4.3.1
  • Fleetdm » Fleet » Version: 4.3.2
    cpe:2.3:a:fleetdm:fleet:4.3.2
  • Fleetdm » Fleet » Version: 4.30.0
    cpe:2.3:a:fleetdm:fleet:4.30.0
  • Fleetdm » Fleet » Version: 4.30.1
    cpe:2.3:a:fleetdm:fleet:4.30.1
  • Fleetdm » Fleet » Version: 4.31.0
    cpe:2.3:a:fleetdm:fleet:4.31.0
  • Fleetdm » Fleet » Version: 4.31.1
    cpe:2.3:a:fleetdm:fleet:4.31.1
  • Fleetdm » Fleet » Version: 4.32.0
    cpe:2.3:a:fleetdm:fleet:4.32.0
  • Fleetdm » Fleet » Version: 4.33.0
    cpe:2.3:a:fleetdm:fleet:4.33.0
  • Fleetdm » Fleet » Version: 4.33.1
    cpe:2.3:a:fleetdm:fleet:4.33.1
  • Fleetdm » Fleet » Version: 4.34.0
    cpe:2.3:a:fleetdm:fleet:4.34.0
  • Fleetdm » Fleet » Version: 4.34.1
    cpe:2.3:a:fleetdm:fleet:4.34.1
  • Fleetdm » Fleet » Version: 4.35.0
    cpe:2.3:a:fleetdm:fleet:4.35.0
  • Fleetdm » Fleet » Version: 4.35.1
    cpe:2.3:a:fleetdm:fleet:4.35.1
  • Fleetdm » Fleet » Version: 4.35.2
    cpe:2.3:a:fleetdm:fleet:4.35.2
  • Fleetdm » Fleet » Version: 4.36.0
    cpe:2.3:a:fleetdm:fleet:4.36.0
  • Fleetdm » Fleet » Version: 4.37.0
    cpe:2.3:a:fleetdm:fleet:4.37.0
  • Fleetdm » Fleet » Version: 4.38.0
    cpe:2.3:a:fleetdm:fleet:4.38.0
  • Fleetdm » Fleet » Version: 4.38.1
    cpe:2.3:a:fleetdm:fleet:4.38.1
  • Fleetdm » Fleet » Version: 4.39.0
    cpe:2.3:a:fleetdm:fleet:4.39.0
  • Fleetdm » Fleet » Version: 4.4.0
    cpe:2.3:a:fleetdm:fleet:4.4.0
  • Fleetdm » Fleet » Version: 4.4.1
    cpe:2.3:a:fleetdm:fleet:4.4.1
  • Fleetdm » Fleet » Version: 4.4.2
    cpe:2.3:a:fleetdm:fleet:4.4.2
  • Fleetdm » Fleet » Version: 4.4.3
    cpe:2.3:a:fleetdm:fleet:4.4.3
  • Fleetdm » Fleet » Version: 4.40.0
    cpe:2.3:a:fleetdm:fleet:4.40.0
  • Fleetdm » Fleet » Version: 4.41.0
    cpe:2.3:a:fleetdm:fleet:4.41.0
  • Fleetdm » Fleet » Version: 4.41.1
    cpe:2.3:a:fleetdm:fleet:4.41.1
  • Fleetdm » Fleet » Version: 4.42.0
    cpe:2.3:a:fleetdm:fleet:4.42.0
  • Fleetdm » Fleet » Version: 4.43.0
    cpe:2.3:a:fleetdm:fleet:4.43.0
  • Fleetdm » Fleet » Version: 4.43.1
    cpe:2.3:a:fleetdm:fleet:4.43.1
  • Fleetdm » Fleet » Version: 4.43.2
    cpe:2.3:a:fleetdm:fleet:4.43.2
  • Fleetdm » Fleet » Version: 4.43.3
    cpe:2.3:a:fleetdm:fleet:4.43.3
  • Fleetdm » Fleet » Version: 4.44.0
    cpe:2.3:a:fleetdm:fleet:4.44.0
  • Fleetdm » Fleet » Version: 4.44.1
    cpe:2.3:a:fleetdm:fleet:4.44.1
  • Fleetdm » Fleet » Version: 4.45.0
    cpe:2.3:a:fleetdm:fleet:4.45.0
  • Fleetdm » Fleet » Version: 4.45.1
    cpe:2.3:a:fleetdm:fleet:4.45.1
  • Fleetdm » Fleet » Version: 4.46.0
    cpe:2.3:a:fleetdm:fleet:4.46.0
  • Fleetdm » Fleet » Version: 4.46.1
    cpe:2.3:a:fleetdm:fleet:4.46.1
  • Fleetdm » Fleet » Version: 4.46.2
    cpe:2.3:a:fleetdm:fleet:4.46.2
  • Fleetdm » Fleet » Version: 4.47.0
    cpe:2.3:a:fleetdm:fleet:4.47.0
  • Fleetdm » Fleet » Version: 4.47.1
    cpe:2.3:a:fleetdm:fleet:4.47.1
  • Fleetdm » Fleet » Version: 4.47.2
    cpe:2.3:a:fleetdm:fleet:4.47.2
  • Fleetdm » Fleet » Version: 4.47.3
    cpe:2.3:a:fleetdm:fleet:4.47.3
  • Fleetdm » Fleet » Version: 4.48.0
    cpe:2.3:a:fleetdm:fleet:4.48.0
  • Fleetdm » Fleet » Version: 4.48.1
    cpe:2.3:a:fleetdm:fleet:4.48.1
  • Fleetdm » Fleet » Version: 4.48.2
    cpe:2.3:a:fleetdm:fleet:4.48.2
  • Fleetdm » Fleet » Version: 4.48.3
    cpe:2.3:a:fleetdm:fleet:4.48.3
  • Fleetdm » Fleet » Version: 4.49.0
    cpe:2.3:a:fleetdm:fleet:4.49.0
  • Fleetdm » Fleet » Version: 4.49.1
    cpe:2.3:a:fleetdm:fleet:4.49.1
  • Fleetdm » Fleet » Version: 4.49.2
    cpe:2.3:a:fleetdm:fleet:4.49.2
  • Fleetdm » Fleet » Version: 4.49.3
    cpe:2.3:a:fleetdm:fleet:4.49.3
  • Fleetdm » Fleet » Version: 4.49.4
    cpe:2.3:a:fleetdm:fleet:4.49.4
  • Fleetdm » Fleet » Version: 4.5.0
    cpe:2.3:a:fleetdm:fleet:4.5.0
  • Fleetdm » Fleet » Version: 4.5.1
    cpe:2.3:a:fleetdm:fleet:4.5.1
  • Fleetdm » Fleet » Version: 4.50.0
    cpe:2.3:a:fleetdm:fleet:4.50.0
  • Fleetdm » Fleet » Version: 4.50.1
    cpe:2.3:a:fleetdm:fleet:4.50.1
  • Fleetdm » Fleet » Version: 4.50.2
    cpe:2.3:a:fleetdm:fleet:4.50.2
  • Fleetdm » Fleet » Version: 4.51.0
    cpe:2.3:a:fleetdm:fleet:4.51.0
  • Fleetdm » Fleet » Version: 4.51.1
    cpe:2.3:a:fleetdm:fleet:4.51.1
  • Fleetdm » Fleet » Version: 4.52.0
    cpe:2.3:a:fleetdm:fleet:4.52.0
  • Fleetdm » Fleet » Version: 4.53.0
    cpe:2.3:a:fleetdm:fleet:4.53.0
  • Fleetdm » Fleet » Version: 4.53.1
    cpe:2.3:a:fleetdm:fleet:4.53.1
  • Fleetdm » Fleet » Version: 4.53.2
    cpe:2.3:a:fleetdm:fleet:4.53.2
  • Fleetdm » Fleet » Version: 4.6.0
    cpe:2.3:a:fleetdm:fleet:4.6.0
  • Fleetdm » Fleet » Version: 4.6.1
    cpe:2.3:a:fleetdm:fleet:4.6.1
  • Fleetdm » Fleet » Version: 4.6.2
    cpe:2.3:a:fleetdm:fleet:4.6.2
  • Fleetdm » Fleet » Version: 4.7.0
    cpe:2.3:a:fleetdm:fleet:4.7.0
  • Fleetdm » Fleet » Version: 4.75.0
    cpe:2.3:a:fleetdm:fleet:4.75.0
  • Fleetdm » Fleet » Version: 4.75.1
    cpe:2.3:a:fleetdm:fleet:4.75.1
  • Fleetdm » Fleet » Version: 4.76.0
    cpe:2.3:a:fleetdm:fleet:4.76.0
  • Fleetdm » Fleet » Version: 4.76.1
    cpe:2.3:a:fleetdm:fleet:4.76.1
  • Fleetdm » Fleet » Version: 4.77.0
    cpe:2.3:a:fleetdm:fleet:4.77.0
  • Fleetdm » Fleet » Version: 4.78.0
    cpe:2.3:a:fleetdm:fleet:4.78.0
  • Fleetdm » Fleet » Version: 4.78.1
    cpe:2.3:a:fleetdm:fleet:4.78.1
  • Fleetdm » Fleet » Version: 4.8.0
    cpe:2.3:a:fleetdm:fleet:4.8.0
  • Fleetdm » Fleet » Version: 4.9.0
    cpe:2.3:a:fleetdm:fleet:4.9.0
  • Fleetdm » Fleet » Version: 4.9.1
    cpe:2.3:a:fleetdm:fleet:4.9.1


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