๐Ÿ›ก๏ธ CVE-2026-22808
๐ŸŸก CVSS 5.4 โ€” Medium โœ… No Known Exploit CWE-79 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity MEDIUM
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE CWE-79
Public Exploit โœ… No
Source NVD
Published 2026-01-21
Updated 2026-06-15
Modified 2026-02-18
Fix URL N/A

Affected Packages

Software From version Fixed in
fleet โ€” โ€”
github.com/fleetdm/fleet โ€” โ€”
github.com/fleetdm/fleet/v4 โ€” โ€”

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