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cli-mcp-servercli-mcp-server 0.2.5 Command Allowlist Bypass via Shell Substitution

Risk 76
Severity
9.2
OS Command Injection
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

cli-mcp-server 0.2.5 contains a command allowlist bypass vulnerability in the validatecommandwithoperators function when ALLOWSHELLOPERATORS is enabled. Attackers can use shell command substitution syntax like $(...) or backticks to execute non-allowlisted commands that bypass the ALLOWEDCOMMANDS validation check.

First published (updated )
CVE-2026-85660

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