CVE-2026-22808

MEDIUM

5.4

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 CVE

Score CVSS v3.15.4

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie1/21/2026

Derniere modification2/18/2026

Sourcenvd

Observations honeypot0

Produits affectes

fleetdm:fleet

Faiblesses (CWE)

CWE-79

References

https://github.com/fleetdm/fleet/security/advisories/GHSA-gfpw-jgvr-cw4j(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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