CVE-2026-117573 (GCVE-0-2026-117573)

Vulnerability from cvelistv5 – Published: 2026-10-27 13:08 – Updated: 2026-10-27 13:08
VLAI
Title
hagent through commit 761eec6 OS Command Injection via Arduino and ESP32 MCP Tools
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.
Severity
8.5 (High)
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
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6925 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
masc-ucsc hagent Affected: 0 , ≤ 761eec627a1e6fb128a2a8ce9245aa595cc2f7af (git)
guessed Create a notification for this product.
Date Public
2026-10-24 00:00
Show details on NVD website
To clipboard 

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          "url": "https://github.com/masc-ucsc/hagent/blob/761eec627a1e6fb128a2a8ce9245aa595cc2f7af/hagent/mcp/mcp_arduino.py#L776"
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        },
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    "cveId": "CVE-2026-117573",
    "datePublished": "2026-10-27T13:08:03.276Z",
    "dateReserved": "2026-10-27T11:33:16.313Z",
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    "state": "PUBLISHED"
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          }
        ],
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        "lastModified": "2026-10-27T16:04:22.707",
        "metrics": {
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                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
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}



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