vulnerable.now

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now.vulnerable/mcpv0.3.0 Domain verified

Free CVE lookups, package checks and patch priorities from eight sources. No account or API key.

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{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-10T06:35:54.153807Z",
      "publishedAt": "2026-11-10T06:35:54.153807Z",
      "statusChangedAt": "2026-11-10T06:35:54.153807Z"
    }
  },
  "server": {
    "name": "now.vulnerable/mcp",
    "icons": [
      {
        "src": "https://vulnerable.now/icon-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "vulnerable.now",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://vulnerable.now/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "0.3.0",
    "websiteUrl": "https://vulnerable.now",
    "description": "Free CVE lookups, package checks and patch priorities from eight sources. No account or API key."
  }
}

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https://vulnerable.now/mcp

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check_stack Read-only

Find known vulnerabilities in what a project or site runs, ranked by what to fix first. Send exact package versions, the raw content of a lockfile (package-lock.json, poetry.lock, go.sum and others), a CycloneDX or SPDX SBOM, a Wappalyzer export, or detected technologies such as nginx 1.18.0. Returns each finding with severity, exploitation, priority and fixed versions.

fileobject

A whole file: a lockfile (recognized by its name), a CycloneDX or SPDX SBOM, or a Wappalyzer JSON or CSV export. Up to 5 MB.

packagesarray

technologiesarray

Website technologies, as Wappalyzer or a person names them.

Try it

Call this server's tools from your browser. Nothing to install.

https://vulnerable.now/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

check_stack Read-only

fileobject

A whole file: a lockfile (recognized by its name), a CycloneDX or SPDX SBOM, or a Wappalyzer JSON or CSV export. Up to 5 MB.

packagesarray

technologiesarray

Website technologies, as Wappalyzer or a person names them.

Tools (7)

check_stack

read-only

Argument	Type	Description
file	object	A whole file: a lockfile (recognized by its name), a CycloneDX or SPDX SBOM, or a Wappalyzer JSON or CSV export. Up to 5 MB.
packages	array
technologies	array	Website technologies, as Wappalyzer or a person names them.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "file": {
      "type": "object",
      "required": [
        "name",
        "content"
      ],
      "properties": {
        "name": {
          "type": "string",
          "description": "The file name, such as package-lock.json, bom.json or wappalyzer.csv."
        },
        "content": {
          "type": "string",
          "description": "The file content as text."
        }
      },
      "description": "A whole file: a lockfile (recognized by its name), a CycloneDX or SPDX SBOM, or a Wappalyzer JSON or CSV export. Up to 5 MB.",
      "additionalProperties": false
    },
    "packages": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "ecosystem",
          "name",
          "version"
        ],
        "properties": {
          "name": {
            "type": "string"
          },
          "version": {
            "type": "string",
            "description": "One exact version, not a range."
          },
          "ecosystem": {
            "type": "string",
            "description": "npm, PyPI, Maven, Go, crates.io, RubyGems, Packagist, NuGet, Hex or Pub."
          }
        },
        "additionalProperties": false
      },
      "maxItems": 1000
    },
    "technologies": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "name"
        ],
        "properties": {
          "name": {
            "type": "string",
            "description": "Such as nginx, PHP, WordPress or jQuery."
          },
          "version": {
            "type": "string"
          }
        },
        "additionalProperties": false
      },
      "maxItems": 500,
      "description": "Website technologies, as Wappalyzer or a person names them."
    }
  },
  "additionalProperties": false
}

get_package

Every known vulnerability in one open source package, most urgent first, with the affected ranges and fixed versions published for that package. Give a version to learn which advisories affect it and the lowest upgrade that leaves every affecting range.

read-only

Argument	Type	Description
name*	string	The package name, such as lodash, django, org.apache.logging.log4j:log4j-core or golang.org/x/net.
sort	string
limit	integer
cursor	string	next_cursor from the previous page.
version	string	Optional exact version to check, such as 4.17.20.
ecosystem*	string	npm, PyPI, Maven, Go, crates.io, RubyGems, Packagist, NuGet, Hex or Pub.
only_affected	boolean	With version, list only the advisories that affect it.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "ecosystem",
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "description": "The package name, such as lodash, django, org.apache.logging.log4j:log4j-core or golang.org/x/net."
    },
    "sort": {
      "enum": [
        "priority",
        "published",
        "score",
        "epss"
      ],
      "type": "string",
      "default": "priority"
    },
    "limit": {
      "type": "integer",
      "default": 40,
      "maximum": 100,
      "minimum": 1
    },
    "cursor": {
      "type": "string",
      "description": "next_cursor from the previous page."
    },
    "version": {
      "type": "string",
      "description": "Optional exact version to check, such as 4.17.20."
    },
    "ecosystem": {
      "type": "string",
      "description": "npm, PyPI, Maven, Go, crates.io, RubyGems, Packagist, NuGet, Hex or Pub."
    },
    "only_affected": {
      "type": "boolean",
      "description": "With version, list only the advisories that affect it."
    }
  },
  "additionalProperties": false
}

get_product

Every known vulnerability in one vendor product, such as an operating system, browser, server, CMS or appliance, most urgent first, with the affected versions and fixes. The vendor is optional: with only a product name, a clear match is answered directly and otherwise the candidates are listed. Give a version to learn which entries affect it and the lowest upgrade that clears them.

read-only

Argument	Type	Description
sort	string
limit	integer
cursor	string	next_cursor from the previous page.
vendor	string	Optional vendor name, such as Apache or Fortinet.
product*	string	The product name, such as WordPress, nginx, Tomcat or FortiOS.
version	string	Optional exact version to check, such as 6.4.2.
only_affected	boolean	With version, list only the entries that affect it.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "product"
  ],
  "properties": {
    "sort": {
      "enum": [
        "priority",
        "published",
        "score",
        "epss"
      ],
      "type": "string",
      "default": "priority"
    },
    "limit": {
      "type": "integer",
      "default": 40,
      "maximum": 100,
      "minimum": 1
    },
    "cursor": {
      "type": "string",
      "description": "next_cursor from the previous page."
    },
    "vendor": {
      "type": "string",
      "description": "Optional vendor name, such as Apache or Fortinet."
    },
    "product": {
      "type": "string",
      "description": "The product name, such as WordPress, nginx, Tomcat or FortiOS."
    },
    "version": {
      "type": "string",
      "description": "Optional exact version to check, such as 6.4.2."
    },
    "only_affected": {
      "type": "boolean",
      "description": "With version, list only the entries that affect it."
    }
  },
  "additionalProperties": false
}

get_vulnerability

Get the merged entry for one or more IDs: CVE, GitHub advisory (GHSA), EUVD, or an OSV ID such as PYSEC, GO or RUSTSEC. Returns the description, CVSS, CISA KEV status, EPSS, public exploits, affected packages, fixed versions, priority and source links.

read-only

Argument	Type	Description
id	string	One ID, such as CVE-2021-44228, GHSA-jfh8-c2jp-5v3q or PYSEC-2021-19.
ids	array	Up to 20 IDs at once, for triaging scanner output.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "One ID, such as CVE-2021-44228, GHSA-jfh8-c2jp-5v3q or PYSEC-2021-19."
    },
    "ids": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 20,
      "description": "Up to 20 IDs at once, for triaging scanner output."
    }
  },
  "additionalProperties": false
}

list_feed

List vulnerabilities newest first (KEV listings by date added when kev is set). Filter by severity, CISA KEV, exploitation, public exploit code, fix availability, ecosystem, vendor, product, text and dates. Use modified_since to pick up changes since a previous run.

read-only

Argument	Type	Description
kev	boolean	Only entries in the CISA KEV catalog.
tech	string	Only entries naming this vendor or vendor product, as a slug: apache, or apache/tomcat.
limit	integer
query	string	Words to match against IDs, titles, vendors, products and descriptions. For best-match ordering, use search.
since	string	Only entries published on or after this date (YYYY-MM-DD).
until	string	Only entries published before this date (YYYY-MM-DD).
cursor	string	next_cursor from the previous page.
vendor	string	Exact vendor name, such as apache or microsoft.
package

Search the whole catalog by words: product, vendor, package, CVE ID or description text. Best match first by default. Each result says which fields matched. When nothing matches, the reply suggests a broader query.

read-only

Argument	Type	Description
q*	string	Words to search for, such as "openssl", "log4j rce" or "exchange server".
kev	boolean	Only entries in the CISA KEV catalog.
sort	string
tech	string	Only entries naming this vendor or vendor product, as a slug: apache, or apache/tomcat.
limit	integer
since	string	Only entries published on or after this date (YYYY-MM-DD).
until	string	Only entries published before this date (YYYY-MM-DD).
cursor	string	next_cursor from the previous page.
vendor	string	Exact vendor name, such as apache or microsoft.

top_priority

What to patch first: the vulnerabilities with the highest priority score (exploitation, EPSS, CVSS, automatability) among those with activity in a time window, optionally narrowed to an ecosystem, vendor or product.

read-only

Argument	Type	Description
kev	boolean	Only entries in the CISA KEV catalog.
limit	integer
vendor	string	Exact vendor name, such as apache or microsoft.
window	string
product	string	Exact product name, such as log4j or exchange server.
ecosystem	string	Package ecosystem, such as npm, PyPI, Maven, Go or crates.io.

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "kev": {
      "type": "boolean",
      "description": "Only entries in the CISA KEV catalog."
    },
    "limit": {
      "type": "integer",
      "default": 15,
      "maximum": 50,
      "minimum": 1
    },
    "vendor": {
      "type": "string",
      "description": "Exact vendor name, such as apache or microsoft."
    },
    "window": {
      "enum": [
        "week",
        "month",
        "year",
        "all"
      ],
      "type": "string",
      "default": "week"
    },
    "product": {
      "type": "string",
      "description": "Exact product name, such as log4j or exchange server."
    },
    "ecosystem": {
      "type": "string",
      "description": "Package ecosystem, such as npm, PyPI, Maven, Go or crates.io."
    }
  },
  "additionalProperties": false
}

{ "type": "object", "properties": { "kev": { "type": "boolean", "description": "Only entries in the CISA KEV catalog." }, "tech": { "type": "string", "description": "Only entries naming this vendor or vendor product, as a slug: apache, or apache/tomcat." }, "limit": { "type": "integer", "default": 20, "maximum": 100, "minimum": 1 }, "query": { "type": "string", "description": "Words to match against IDs, titles, vendors, products and descriptions. For best-match ordering, use search." }, "since": { "type": "string", "description": "Only entries published on or after this date (YYYY-MM-DD)." }, "until": { "type": "string", "description": "Only entries published before this date (YYYY-MM-DD)." }, "cursor": { "type": "string", "description": "next_cursor from the previous page." }, "vendor": { "type": "string", "description": "Exact vendor name, such as apache or microsoft." }, "package": { "type": "string", "description": "Only entries naming this package, as ecosystem:name, such as npm:lodash or pypi:django." }, "product": { "type": "string", "description": "Exact product name, such as log4j or exchange server." }, "severity": { "type": "array", "items": { "enum": [ "critical", "high", "medium", "low" ], "type": "string" }, "description": "Only these severities." }, "ecosystem": { "type": "string", "description": "Package ecosystem, such as npm, PyPI, Maven, Go or crates.io." }, "exploited": { "type": "boolean", "description": "Only entries with reported exploitation (KEV, CISA SSVC or ENISA)." }, "fix_available": { "type": "boolean", "description": "Only entries with a fixed version." }, "modified_since": { "type": "string", "description": "Only entries whose merged record changed at or after this date (YYYY-MM-DD) or time (ISO 8601). Pass the newest modified value from the previous run." }, "public_exploit": { "type": "boolean", "description": "Only entries with public exploit code." } }, "additionalProperties": false }

{ "type": "object", "required": [ "q" ], "properties": { "q": { "type": "string", "description": "Words to search for, such as \"openssl\", \"log4j rce\" or \"exchange server\"." }, "kev": { "type": "boolean", "description": "Only entries in the CISA KEV catalog." }, "sort": { "enum": [ "relevance", "published", "score", "epss", "priority", "activity", "modified" ], "type": "string", "default": "relevance" }, "tech": { "type": "string", "description": "Only entries naming this vendor or vendor product, as a slug: apache, or apache/tomcat." }, "limit": { "type": "integer", "default": 10, "maximum": 50, "minimum": 1 }, "since": { "type": "string", "description": "Only entries published on or after this date (YYYY-MM-DD)." }, "until": { "type": "string", "description": "Only entries published before this date (YYYY-MM-DD)." }, "cursor": { "type": "string", "description": "next_cursor from the previous page." }, "vendor": { "type": "string", "description": "Exact vendor name, such as apache or microsoft." }, "package": { "type": "string", "description": "Only entries naming this package, as ecosystem:name, such as npm:lodash or pypi:django." }, "product": { "type": "string", "description": "Exact product name, such as log4j or exchange server." }, "severity": { "type": "array", "items": { "enum": [ "critical", "high", "medium", "low" ], "type": "string" }, "description": "Only these severities." }, "ecosystem": { "type": "string", "description": "Package ecosystem, such as npm, PyPI, Maven, Go or crates.io." }, "exploited": { "type": "boolean", "description": "Only entries with reported exploitation (KEV, CISA SSVC or ENISA)." }, "fix_available": { "type": "boolean", "description": "Only entries with a fixed version." }, "modified_since": { "type": "string", "description": "Only entries whose merged record changed at or after this date (YYYY-MM-DD) or time (ISO 8601). Pass the newest modified value from the previous run." }, "public_exploit": { "type": "boolean", "description": "Only entries with public exploit code." } }, "additionalProperties": false }

vulnerable.now

Registry entry

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check_stack Read-only

vulnerable.now

Registry entry

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check_stack Read-only

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Tools (7)

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