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        "dateReserved": "2026-06-20T01:47:54.000Z",
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            "datePublic": "2026-05-14T00:00:00.000Z",
            "title": "Flowise - Remote Code Execution via MCP Security Bypass in validateCommandFlags and validateArgsForLocalFileAccess",
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                    "lang": "en",
                    "value": "Flowise before 3.1.2 contains multiple OS command injection vulnerabilities in the Custom MCP Server feature due to incomplete command-flag validation and a regex bypass in local file access restrictions. An attacker with a Flowise account of any role, or API access with view/update permissions for chatflows, can configure a malicious MCP server to bypass the validateCommandFlags blocklist (for example, 'docker build' is not blocked, and 'npx --yes' is not blocked while only '-y' is) and the validateArgsForLocalFileAccess checks, resulting in execution of arbitrary commands on the Flowise host."
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                            "description": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
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                            "type": "CWE"
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