{"id":"CVE-2026-108953","published":"2026-10-12T13:17:28.307","lastModified":"2026-10-16T19:18:44.867","description":"mac-shell-mcp before 2.0.0 contains an OS command injection vulnerability that allows MCP clients to bypass the command whitelist by injecting shell metacharacters into execute_command arguments. Attackers or malicious prompts can call a safe command such as pwd with arguments like ';' to run forbidden commands as the server user without approval.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://github.com/cfdude/mac-shell-mcp","tags":[]},{"url":"https://github.com/cfdude/mac-shell-mcp/blob/1c1708201abb7a18c83075e1bf933e7a92cbeb9f/src/services/command-service.ts#L257-L340","tags":[]},{"url":"https://github.com/cfdude/mac-shell-mcp/commit/932ce733cde07bb30b1f186303e6692dbb5d087a","tags":[]},{"url":"https://github.com/cfdude/mac-shell-mcp/issues/45","tags":[]},{"url":"https://www.vulncheck.com/advisories/mac-shell-mcp-before-2.0.0-os-command-injection-via-execute-command-arguments","tags":[]}],"exploitRefs":[{"url":"https://github.com/cfdude/mac-shell-mcp","tags":[]},{"url":"https://github.com/cfdude/mac-shell-mcp/blob/1c1708201abb7a18c83075e1bf933e7a92cbeb9f/src/services/command-service.ts#L257-L340","tags":[]},{"url":"https://github.com/cfdude/mac-shell-mcp/commit/932ce733cde07bb30b1f186303e6692dbb5d087a","tags":[]},{"url":"https://github.com/cfdude/mac-shell-mcp/issues/45","tags":[]}],"hasPoc":true,"ai":null}