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Advisories

open 7.2.0 before 11.0.0 OS Command Injection via PowerShell on Windows

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Severity
high
Date
Affecting

  • open >= 7.2.0, < 11.0.0

  • inspector >= 2.0.0, < 2.12.0

  • opencode >= 1.0.137, < 1.18.33

CWE
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS
7.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Eilon Cohen (Pillar Security)
Description
open 7.2.0 before 11.0.0 contains an OS command injection vulnerability that allows attackers to execute PowerShell code by supplying crafted URLs on Windows and WSL. Attackers can embed $(...) subexpressions in URLs, such as OAuth authorization_endpoint values from malicious MCP servers, which execute when index.js passes them unescaped to powershell -EncodedCommand.

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