Access Control Bypass Affecting sandboxie-plus/Sandboxie package, versions [,1.17.6)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-UNMANAGED-SANDBOXIEPLUSSANDBOXIE-18017814
  • published19 Jul 2026
  • disclosed16 Jul 2026
  • creditUnknown

Introduced: 16 Jul 2026

CVE-2026-45313  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade sandboxie-plus/Sandboxie to version 1.17.6 or higher.

Overview

Affected versions of this package are vulnerable to Access Control Bypass via improper validation of the hthread and hproc fields in the GuiServer::WndHookRegisterSlave process. An attacker can execute arbitrary code in an unsandboxed host process by supplying crafted values that are used in privileged operations.

CVSS Base Scores

version 4.0
version 3.1