LLMHigh
CVE-2026-108953: mac-shell-mcp before 2.0.0 contains an OS command injection vulnerability that allows MCP clients to…
- Occurred
- Oct 12, 2026
- Published
- Oct 12, 2026
- Source
- NVD CVE
Summary
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.
Tags
- CVE
- CVE-2026-108953
- cvss:HIGH
Classification
Category confidence: 90%
Severity confidence: 85%
Rationale: Command injection vulnerability in MCP client allows bypassing safety controls via malicious prompts.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8