Property 'allowEmptyValue' Ignored

  • Query id: 59c2f769-7cc2-49c8-a3de-4e211135cfab
  • Query name: Property 'allowEmptyValue' Ignored
  • Platform: OpenAPI
  • Severity: Info
  • Category: Best Practices
  • URL: Github

Description

Property 'allowEmptyValue' is ignored in the following cases: {"sytle": "simple", "explode": false}, {"sytle": "simple", "explode": true}, {"sytle": "spaceDelimited", "explode": false}, {"sytle": "pipeDelimited", "explode": false}, and {"sytle": "deepObject", "explode": true}
Documentation

Code samples

Code samples with security vulnerabilities

Positive test num. 1 - json file
{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "get": {
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "200 response",
            "content": {
              "application/json": {
                "examples": {
                  "foo": {
                    "value": {
                      "versions": [
                        {
                          "status": "CURRENT",
                          "updated": "2011-01-21T11:33:21Z",
                          "id": "v2.0",
                          "links": [
                            {
                              "href": "http://127.0.0.1:8774/v2/",
                              "rel": "self"
                            }
                          ]
                        }
                      ]
                    }
                  }
                }
              }
            }
          }
        }
      },
      "parameters": [
        {
          "name": "id",
          "in": "path",
          "description": "ID of the API version",
          "required": true,
          "allowEmptyValue": true,
          "schema": {
            "type": "integer"
          }
        }
      ]
    }
  }
}
Positive test num. 2 - yaml file
openapi: 3.0.0
info:
  title: Simple API overview
  version: 1.0.0
paths:
  "/":
    get:
      operationId: listVersionsv2
      summary: List API versions
      responses:
        "200":
          description: 200 response
          content:
            application/json:
              examples:
                foo:
                  value:
                    versions:
                      - status: CURRENT
                        updated: "2011-01-21T11:33:21Z"
                        id: v2.0
                        links:
                          - href: http://127.0.0.1:8774/v2/
                            rel: self
    parameters:
      - name: id
        in: path
        description: ID of the API version
        required: true
        allowEmptyValue: true
        schema:
          type: integer
Positive test num. 3 - json file
{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "parameters": [
        {
          "required": true,
          "allowEmptyValue": true,
          "schema": {
            "type": "integer"
          },
          "name": "id",
          "in": "query",
          "style": "deepObject",
          "explode": true,
          "description": "ID of the API version"
        }
      ],
      "get": {
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "200 response",
            "content": {
              "application/json": {
                "examples": {
                  "foo": {
                    "value": {
                      "versions": [
                        {
                          "status": "CURRENT",
                          "updated": "2011-01-21T11:33:21Z",
                          "id": "v2.0",
                          "links": [
                            {
                              "href": "http://127.0.0.1:8774/v2/",
                              "rel": "self"
                            }
                          ]
                        }
                      ]
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Positive test num. 4 - yaml file
openapi: 3.0.0
info:
  title: Simple API overview
  version: 1.0.0
paths:
  "/":
    get:
      operationId: listVersionsv2
      summary: List API versions
      responses:
        "200":
          description: 200 response
          content:
            application/json:
              examples:
                foo:
                  value:
                    versions:
                      - status: CURRENT
                        updated: "2011-01-21T11:33:21Z"
                        id: v2.0
                        links:
                          - href: http://127.0.0.1:8774/v2/
                            rel: self
    parameters:
      - name: id
        in: query
        style: deepObject
        explode: true
        description: ID of the API version
        required: true
        allowEmptyValue: true
        schema:
          type: integer
Positive test num. 5 - json file
{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "parameters": [
        {
          "name": "id",
          "in": "query",
          "style": "spaceDelimited",
          "description": "ID of the API version",
          "required": true,
          "allowEmptyValue": true,
          "schema": {
            "type": "integer"
          }
        }
      ],
      "get": {
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "200 response",
            "content": {
              "application/json": {
                "examples": {
                  "foo": {
                    "value": {
                      "versions": [
                        {
                          "status": "CURRENT",
                          "updated": "2011-01-21T11:33:21Z",
                          "id": "v2.0",
                          "links": [
                            {
                              "href": "http://127.0.0.1:8774/v2/",
                              "rel": "self"
                            }
                          ]
                        }
                      ]
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
Positive test num. 6 - yaml file
openapi: 3.0.0
info:
  title: Simple API overview
  version: 1.0.0
paths:
  "/":
    get:
      operationId: listVersionsv2
      summary: List API versions
      responses:
        "200":
          description: 200 response
          content:
            application/json:
              examples:
                foo:
                  value:
                    versions:
                      - status: CURRENT
                        updated: "2011-01-21T11:33:21Z"
                        id: v2.0
                        links:
                          - href: http://127.0.0.1:8774/v2/
                            rel: self
    parameters:
      - name: id
        in: query
        style: spaceDelimited
        description: ID of the API version
        required: true
        allowEmptyValue: true
        schema:
          type: integer

Code samples without security vulnerabilities

Negative test num. 1 - json file
{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "get": {
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "200 response",
            "content": {
              "application/json": {
                "examples": {
                  "foo": {
                    "value": {
                      "versions": [
                        {
                          "status": "CURRENT",
                          "updated": "2011-01-21T11:33:21Z",
                          "id": "v2.0",
                          "links": [
                            {
                              "href": "http://127.0.0.1:8774/v2/",
                              "rel": "self"
                            }
                          ]
                        }
                      ]
                    }
                  }
                }
              }
            }
          }
        }
      },
      "parameters": [
        {
          "in": "path",
          "style": "label",
          "description": "ID of the API version",
          "required": true,
          "allowEmptyValue": true,
          "schema": {
            "type": "integer"
          }
        }
      ]
    }
  }
}
Negative test num. 2 - yaml file
openapi: 3.0.0
info:
  title: Simple API overview
  version: 1.0.0
paths:
  "/":
    get:
      operationId: listVersionsv2
      summary: List API versions
      responses:
        "200":
          description: 200 response
          content:
            application/json:
              examples:
                foo:
                  value:
                    versions:
                      - status: CURRENT
                        updated: "2011-01-21T11:33:21Z"
                        id: v2.0
                        links:
                          - href: http://127.0.0.1:8774/v2/
                            rel: self
    parameters:
      - name: id
        in: path
        style: label
        description: ID of the API version
        required: true
        allowEmptyValue: true
        schema:
          type: integer
Negative test num. 3 - json file
{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "parameters": [
        {
          "required": true,
          "allowEmptyValue": true,
          "schema": {
            "type": "integer"
          },
          "name": "id",
          "in": "query",
          "style": "deepObject",
          "explode": false,
          "description": "ID of the API version"
        }
      ],
      "get": {
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "200 response",
            "content": {
              "application/json": {
                "examples": {
                  "foo": {
                    "value": {
                      "versions": [
                        {
                          "status": "CURRENT",
                          "updated": "2011-01-21T11:33:21Z",
                          "id": "v2.0",
                          "links": [
                            {
                              "href": "http://127.0.0.1:8774/v2/",
                              "rel": "self"
                            }
                          ]
                        }
                      ]
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Negative test num. 4 - yaml file
openapi: 3.0.0
info:
  title: Simple API overview
  version: 1.0.0
paths:
  "/":
    get:
      operationId: listVersionsv2
      summary: List API versions
      responses:
        "200":
          description: 200 response
          content:
            application/json:
              examples:
                foo:
                  value:
                    versions:
                      - status: CURRENT
                        updated: "2011-01-21T11:33:21Z"
                        id: v2.0
                        links:
                          - href: http://127.0.0.1:8774/v2/
                            rel: self
    parameters:
      - name: id
        in: query
        style: deepObject
        explode: false
        description: ID of the API version
        required: true
        allowEmptyValue: true
        schema:
          type: integer
Negative test num. 5 - json file
{
  "openapi": "3.0.0",
  "info": {
    "title": "Simple API overview",
    "version": "1.0.0"
  },
  "paths": {
    "/": {
      "parameters": [
        {
          "name": "id",
          "in": "query",
          "style": "spaceDelimited",
          "explode": false,
          "description": "ID of the API version",
          "required": true,
          "allowEmptyValue": false,
          "schema": {
            "type": "integer"
          }
        }
      ],
      "get": {
        "operationId": "listVersionsv2",
        "summary": "List API versions",
        "responses": {
          "200": {
            "description": "200 response",
            "content": {
              "application/json": {
                "examples": {
                  "foo": {
                    "value": {
                      "versions": [
                        {
                          "status": "CURRENT",
                          "updated": "2011-01-21T11:33:21Z",
                          "id": "v2.0",
                          "links": [
                            {
                              "href": "http://127.0.0.1:8774/v2/",
                              "rel": "self"
                            }
                          ]
                        }
                      ]
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
Negative test num. 6 - yaml file
openapi: 3.0.0
info:
  title: Simple API overview
  version: 1.0.0
paths:
  "/":
    get:
      operationId: listVersionsv2
      summary: List API versions
      responses:
        "200":
          description: 200 response
          content:
            application/json:
              examples:
                foo:
                  value:
                    versions:
                      - status: CURRENT
                        updated: "2011-01-21T11:33:21Z"
                        id: v2.0
                        links:
                          - href: http://127.0.0.1:8774/v2/
                            rel: self
    parameters:
      - name: id
        in: query
        style: spaceDelimited
        explode: false
        description: ID of the API version
        required: true
        allowEmptyValue: false
        schema:
          type: integer