1  {
 2    "$schema": "http://json-schema.org/draft-07/schema#",
 3    "$id": "https://raw.githubusercontent.com/ajv-validator/ajv/master/lib/refs/json-schema-secure.json#",
 4    "title": "Meta-schema for the security assessment of JSON Schemas",
 5    "description": "If a JSON AnySchema fails validation against this meta-schema, it may be unsafe to validate untrusted data",
 6    "definitions": {
 7      "schemaArray": {
 8        "type": "array",
 9        "minItems": 1,
10        "items": {"$ref": "#"}
11      }
12    },
13    "dependencies": {
14      "patternProperties": {
15        "description": "prevent slow validation of large property names",
16        "required": ["propertyNames"],
17        "properties": {
18          "propertyNames": {
19            "required": ["maxLength"]
20          }
21        }
22      },
23      "uniqueItems": {
24        "description": "prevent slow validation of large non-scalar arrays",
25        "if": {
26          "properties": {
27            "uniqueItems": {"const": true},
28            "items": {
29              "properties": {
30                "type": {
31                  "anyOf": [
32                    {
33                      "enum": ["object", "array"]
34                    },
35                    {
36                      "type": "array",
37                      "contains": {"enum": ["object", "array"]}
38                    }
39                  ]
40                }
41              }
42            }
43          }
44        },
45        "then": {
46          "required": ["maxItems"]
47        }
48      },
49      "pattern": {
50        "description": "prevent slow pattern matching of large strings",
51        "required": ["maxLength"]
52      },
53      "format": {
54        "description": "prevent slow format validation of large strings",
55        "required": ["maxLength"]
56      }
57    },
58    "properties": {
59      "additionalItems": {"$ref": "#"},
60      "additionalProperties": {"$ref": "#"},
61      "dependencies": {
62        "additionalProperties": {
63          "anyOf": [{"type": "array"}, {"$ref": "#"}]
64        }
65      },
66      "items": {
67        "anyOf": [{"$ref": "#"}, {"$ref": "#/definitions/schemaArray"}]
68      },
69      "definitions": {
70        "additionalProperties": {"$ref": "#"}
71      },
72      "patternProperties": {
73        "additionalProperties": {"$ref": "#"}
74      },
75      "properties": {
76        "additionalProperties": {"$ref": "#"}
77      },
78      "if": {"$ref": "#"},
79      "then": {"$ref": "#"},
80      "else": {"$ref": "#"},
81      "allOf": {"$ref": "#/definitions/schemaArray"},
82      "anyOf": {"$ref": "#/definitions/schemaArray"},
83      "oneOf": {"$ref": "#/definitions/schemaArray"},
84      "not": {"$ref": "#"},
85      "contains": {"$ref": "#"},
86      "propertyNames": {"$ref": "#"}
87    }
88  }