CVE-2026-26191

Gravedad CVSS v4.0:

MEDIA

Tipo:

CWE-78 Neutralización incorrecta de elementos especiales usados en un comando de sistema operativo (Inyección de comando de sistema operativo)

Fecha de publicación:

14/05/2026

Última modificación:

18/05/2026

Descripción

*** Pendiente de traducción *** Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet&#39;s software installer pipeline could allow a crafted software package to execute arbitrary commands as root (macOS/Linux) or SYSTEM (Windows) on managed endpoints when an uninstall is triggered. When a software package (.pkg, .deb, .rpm, .exe, or .msi) is uploaded to Fleet, metadata is extracted from the package binary and used to generate uninstall scripts. In affected versions, this metadata is not properly sanitized before being included in the generated scripts. A specially crafted package containing malicious values in its metadata fields could result in unintended command execution when the uninstall script runs on managed endpoints. Version 4.81.0 contains a patch. If an immediate upgrade is not possible, administrators should avoid uploading software packages obtained from untrusted or unverified sources. Additionally, administrators can manually inspect and edit auto-generated uninstall scripts before deployment.

Impacto

Vector 4.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS v4.0 Severidad y Métricas:

Puntuación base: 6.00 MEDIA
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Bajo
Attack Requirements (AT): Present
Privilegios Requeridos (PR): Ninguno
Interacción del usuario (UI): Passsive
Confidentiality (VC): Ninguno
Integrity (VI): Alto
Availability (VA): Ninguno
Confidentiality (SC): Ninguno
Integrity (SI): Ninguno
Availability (SA): Ninguno

Puntuación base 4.0

6.00

Gravedad 4.0

MEDIA

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severidad y Métricas:

Puntuación base: 9.80 CRÍTICA
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Bajo
Privilegios Requeridos (PR): Ninguno
Interacción del usuario (UI): Ninguno
Alcance (S): Sin modificar
Impacto a la confidencialidad (C): Alto
Impacto a la integridad (I): Alto
Impacto a la disponibilidad (A): Alto