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CVSS 10.0CVSS 10.0 · CRITICAL

CVE-2026-34078

Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts the resolved host path in the sandbox. This gives apps access to all host files and can be used as a primitive to gain code execution in the host context. This vulnerability is fixed in 1.16.4.

Ver en NVD

Severidad

Puntaje: 10.0(CRITICAL)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: NONE
UI: NONE
S: CHANGED
C: HIGH
I: HIGH
A: HIGH
Tipo de falla (CWE): CWE-61CWE-59

EPSS

Probabilidad de explotación (próx. 30 días): 0.0168 (1.7%)
Percentil: 74.1%
EPSS: 2026-07-06

Afecta

flatpak:flatpak

Descripción técnica

Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts the resolved host path in the sandbox. This gives apps access to all host files and can be used as a primitive to gain code execution in the host context. This vulnerability is fixed in 1.16.4.

Publicada: 7/4/2026, 22:16:21
Última modificación: 6/7/2026, 13:16:40

Referencias

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