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    2 vulnerabilities by masc-ucsc

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

    Vulnerability from nvd – 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 6966 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    masc-ucsc hagent Affected: 0 , ≤ 761eec627a1e6fb128a2a8ce9245aa595cc2f7af (git)
    		Create a notification for this product.
    Date Public
    2026-10-24 00:00
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "hagent",
          "vendor": "masc-ucsc",
          "versions": [
            {
              "lessThanOrEqual": "761eec627a1e6fb128a2a8ce9245aa595cc2f7af",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
      "datePublic": "2026-10-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
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            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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      ],
      "problemTypes": [
        {
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            {
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              "description": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T13:08:03.276Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
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          "name": "GitHub Issue #98",
          "tags": [
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          ],
          "url": "https://github.com/masc-ucsc/hagent/issues/98"
        },
        {
          "tags": [
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          "url": "https://github.com/masc-ucsc/hagent"
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          "url": "https://github.com/masc-ucsc/hagent/blob/761eec627a1e6fb128a2a8ce9245aa595cc2f7af/hagent/mcp/mcp_arduino.py#L776"
        },
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          "url": "https://github.com/masc-ucsc/hagent/blob/761eec627a1e6fb128a2a8ce9245aa595cc2f7af/hagent/mcp/mcp_esp32.py#L682"
        },
        {
          "name": "VulnCheck Advisory: hagent through commit 761eec6 OS Command Injection via Arduino and ESP32 MCP Tools",
          "tags": [
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        }
      ],
      "title": "hagent through commit 761eec6 OS Command Injection via Arduino and ESP32 MCP Tools",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-117573",
    "datePublished": "2026-10-27T13:08:03.276Z",
    "dateReserved": "2026-10-27T11:33:16.313Z",
    "dateUpdated": "2026-10-27T13:08:03.276Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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    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 6966 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    masc-ucsc hagent Affected: 0 , ≤ 761eec627a1e6fb128a2a8ce9245aa595cc2f7af (git)
    		Create a notification for this product.
    Date Public
    2026-10-24 00:00
    Show details on NVD website
    To clipboard 

    {
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "hagent",
          "vendor": "masc-ucsc",
          "versions": [
            {
              "lessThanOrEqual": "761eec627a1e6fb128a2a8ce9245aa595cc2f7af",
              "status": "affected",
              "version": "0",
              "versionType": "git"
            }
          ]
        }
      ],
      "datePublic": "2026-10-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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        }
      ],
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T13:08:03.276Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #98",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/masc-ucsc/hagent/issues/98"
        },
        {
          "tags": [
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          "url": "https://github.com/masc-ucsc/hagent"
        },
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          "url": "https://github.com/masc-ucsc/hagent/blob/761eec627a1e6fb128a2a8ce9245aa595cc2f7af/hagent/mcp/mcp_arduino.py#L776"
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          "url": "https://github.com/masc-ucsc/hagent/blob/761eec627a1e6fb128a2a8ce9245aa595cc2f7af/hagent/mcp/mcp_esp32.py#L682"
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