CVE-2026-117573 — Vulnerability intelligence
masc-ucsc — hagent
Published:
- CVSS
- 8.5
- CISA KEV
- Not listed; not proof of no exploitation
Original source text (not a translation)
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.