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.
History

Tue, 13 Oct 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Cfdude
Cfdude mac-shell-mcp
Vendors & Products Cfdude
Cfdude mac-shell-mcp

Mon, 12 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
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.
Title mac-shell-mcp before 2.0.0 OS Command Injection via execute_command Arguments
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-12T12:13:05.422Z

Updated: 2026-10-13T16:58:27.456Z

Reserved: 2026-10-11T19:04:35.850Z

Link: CVE-2026-108953

cve-icon Vulnrichment

Updated: 2026-10-13T16:40:53.746Z

cve-icon NVD

Status : Deferred

Published: 2026-10-12T13:17:28.307

Modified: 2026-10-16T19:18:44.867

Link: CVE-2026-108953

cve-icon Redhat

No data.