python-utcp: Command Injection via Unsanitized Argument Substitution in CLI Communication Protocol_CVE-2026-45369

{
    "lastseen": "",
    "description": "python-utcp is the python implementation of UTCP. Prior to 1.1.3, the _substitute_utcp_args method in cli_communication_protocol.py inserts user-controlled tool_args values directly into shell command strings without any sanitization or escaping. These commands are then executed via /bin/bash -c (Unix) or powershell.exe -Command (Windows), allowing an attacker to inject arbitrary shell commands. This vulnerability is fixed in 1.1.3.",
    "published": "2026-05-14T20:14:50.993Z",
    "modified": "2026-05-14T20:14:50.993Z",
    "type": "cve",
    "title": "python-utcp: Command Injection via Unsanitized Argument Substitution in CLI Communication Protocol",
    "source": "GitHub_M",
    "references": "https://github.com/universal-tool-calling-protocol/python-utcp/security/advisories/GHSA-33p6-5jxp-p3x4",
    "id": "CVE-2026-45369",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78"
    ],
    "cvelist": null,
    "sourceData": "universal-tool-calling-protocol python-utcp < 1.1.2",
    "sourceHref": "",
    "cvss": {
        "score": 8.3,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "cvss2": [],
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        "baseScore": 0,
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        "privilegesRequired": "",
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        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "python-utcp",
    "version": "< 1.1.2",
    "vendor": "universal-tool-calling-protocol",
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    "ai_score": 0
}