# CVE-2026-102280: Sandboxie-Plus: Sandbox containment bypass

Status: published. Published: 2026-11-04. Updated: 2026-11-04.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- sandboxie-plus / Sandboxie: < 1.18.6 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); 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; source: CNA: GitHub_M

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-390, CWE-636, CWE-668, CWE-863

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/sandboxie-plus/Sandboxie/security/advisories/GHSA-vhjw-4xvf-c74w (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/sandboxie-plus/Sandboxie/commit/4e121cc4dacdc31973adcb81581b0414d48c26fc (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/sandboxie-plus/Sandboxie/releases/tag/v1.18.6 (CNA: GitHub_M; x_refsource_MISC)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-102280; retrieved 2026-11-04; source updated 2026-11-04

Revision: aa5edba764864f03e3dae599f428d10f8fda70e0bf0987f665043d26e90befba

Canonical: https://y2.dev/cve/CVE-2026-102280

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