---
id: CVE-2026-102280
title: 'Sandboxie-Plus: Sandbox containment bypass'
summary: >-
  Sandboxie-Plus is an open source sandbox-based isolation software for Windows.
  Prior to 1.18.6, a process inside a sandbox could send
  MSGID_FILE_SET_ATTRIBUTES or MSGID_FILE_SET_SHORT_NAME to SbieSvc and cause
  the SYSTEM service to open …
severity: medium
cvss: 6.9
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-390
  - CWE-636
  - CWE-668
  - CWE-863
vendor: sandboxie-plus
product: Sandboxie
affected:
  - Sandboxie < 1.18.6
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T20:49:08.407707Z'
exploitAvailable: true
published: '2026-11-04'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T20:49:24.021Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-102280'
references:
  - url: >-
      https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-vhjw-4xvf-c74w
    label: >-
      https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-vhjw-4xvf-c74w
  - url: >-
      https://github.com/sandboxie-plus/Sandboxie/commit/4e121cc4dacdc31973adcb81581b0414d48c26fc
    label: >-
      https://github.com/sandboxie-plus/Sandboxie/commit/4e121cc4dacdc31973adcb81581b0414d48c26fc
  - url: 'https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.18.6'
    label: 'https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.18.6'
tags:
  - cve.org
  - exploit-available
epss: 0.00109
epssPercentile: 0.01223
ingestedAt: '2026-11-05T22:38:31.885Z'
---

## Overview

Sandboxie-Plus is an open source sandbox-based isolation software for Windows. Prior to 1.18.6, a process inside a sandbox could send MSGID_FILE_SET_ATTRIBUTES or MSGID_FILE_SET_SHORT_NAME to SbieSvc and cause the SYSTEM service to open and modify an existing file outside the sandbox. The direct primitive changes file attributes, timestamps, writeability, or 8.3 short names; a short-name redirection can additionally contribute to SYSTEM code execution when a privileged process resolves an attacker-controlled short-name path in a location SbieSvc can open. This vulnerability is fixed in 1.18.6.

## Affected

- `Sandboxie < 1.18.6`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.