CVE-2026-117573Published

hagent through commit 761eec6 OS Command Injection via Arduino and ESP32 MCP Tools

Exact source revision recorded 27 Oct 2026 15:09:21 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-117573

Published

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.

Source published: 27 Oct 2026 13:08:03 UTC
Source modified: 27 Oct 2026 13:08:03 UTC
Observed here: 27 Oct 2026 15:09:21 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 8.5 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

CVSS 3.1 · 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H