LLMHigh
CVE-2026-117573: hagent through commit 761eec6 contains an OS command injection vulnerability that allows MCP clients…
- Occurred
- Oct 27, 2026
- Published
- Oct 27, 2026
- Source
- NVD CVE
Summary
hagent through commit 761eec6 contains an OS command injection vulnerability that allows MCP clients to execute shell commands by injecting metacharacters into the args parameter of the hagent_arduino and hagent_esp32 tools. Attackers or prompt-injected agents can supply crafted args interpolated into arduino-cli and idf.py commands run with subprocess.run(shell=True) to execute commands as the MCP server user.
Tags
- CVE
- CVE-2026-117573
- cvss:HIGH
Classification
Category confidence: 90%
Severity confidence: 85%
Rationale: OS command injection vulnerability in MCP client tools allows attackers to execute arbitrary shell commands via prompt injection.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8