Issues

• @apidevtools/json-schema-ref-parser v14 is vulnerable

  cdimascio/express-openapi-validator#1236 · Filter by author andreainnocenti opened on Aug 18, 2026
  1

• Express v5: Array query params with bracket notation fail validation

  cdimascio/express-openapi-validator#1196 · Filter by author sanderhmn opened on May 26, 2026

• Serializer/Deserializer does not work with arrays when type specifier has multiple options

  cdimascio/express-openapi-validator#1177 · Filter by author AndrewRL97 opened on Apr 6, 2026

• Built-in XML body input validation

  cdimascio/express-openapi-validator#1146 · Filter by author doteric opened on Feb 26, 2026

• 5.6.1 is breaking change due to @apidevtools/json-schema-ref-parser@15.2.1

  bug
  cdimascio/express-openapi-validator#1131 · Filter by author dogmatic69 opened on Jan 18, 2026
  4

• [ERR_INVALID_URL] Middleware throw error while reading apiSpecs in ESM server

  cdimascio/express-openapi-validator#1121 · Filter by author FatBenny99 opened on Nov 28, 2025

• $refs in path that are enums cause validator to expect an array

  cdimascio/express-openapi-validator#1119 · Filter by author djMax opened on Nov 20, 2025
  2

• Validation wrongly fails when using query parameters with literal bracketed names

  cdimascio/express-openapi-validator#1115 · Filter by author RayzRazko opened on Nov 10, 2025

• Unable to reference metaschema using $ref

  cdimascio/express-openapi-validator#1114 · Filter by author jshbrntt opened on Oct 28, 2025

• DeprecationWarning: The punycode module is deprecated

  cdimascio/express-openapi-validator#1111 · Filter by author razbroc opened on Sep 16, 2025

• Support discriminator mapping

  cdimascio/express-openapi-validator#1108 · Filter by author magnusjtvisma opened on Sep 9, 2025

• multipleOf with decimal (e.g. 0.01) rejects values like 2.34 due to float precision

  cdimascio/express-openapi-validator#1105 · Filter by author Gituar opened on Aug 22, 2025
  2

• Endpoint specificity ordering fails if overlapping endpoints use different parameter names

  cdimascio/express-openapi-validator#1089 · Filter by author tj-thompson opened on Jul 1, 2025

• Ambiguity in Validation Due to Same discriminator.propertyName Across Multiple Schemas

  cdimascio/express-openapi-validator#1088 · Filter by author kapil5harma opened on Jun 25, 2025
  1

• Support readOnly + required combination again

  cdimascio/express-openapi-validator#1083 · Filter by author FYamazaki opened on Jun 10, 2025
  3

• Response validation is not executed for non-JSON responses

  enhancement
  cdimascio/express-openapi-validator#1079 · Filter by author leeleahulkcs opened on Jun 4, 2025
  1

• query parameter using allOf with ref and default doesn't get default value at runtime

  cdimascio/express-openapi-validator#1065 · Filter by author domantas-simplex opened on May 15, 2025

• AJV constructed on every call

  cdimascio/express-openapi-validator#1055 · Filter by author gnichola opened on Mar 21, 2025
  2

• Multi-byte chars count as more than one char

  cdimascio/express-openapi-validator#1052 · Filter by author pebo opened on Mar 6, 2025

• ignorePaths not taken in account when a request validation is perform

  cdimascio/express-openapi-validator#1046 · Filter by author SBKila opened on Feb 25, 2025

• Support for middleware execution after validateSecurity but before operationHandlers

  cdimascio/express-openapi-validator#1042 · Filter by author iva666ka opened on Feb 6, 2025
  1

• Upfront initialization of path params & other expensive work

  cdimascio/express-openapi-validator#1041 · Filter by author patricktyndall opened on Jan 14, 2025
  2

• Global "allowReservedInQueryParameters" flag

  cdimascio/express-openapi-validator#1038 · Filter by author briangweber opened on Jan 6, 2025
  1

• Feature Request: Error on additional properties

  cdimascio/express-openapi-validator#1014 · Filter by author leeleahulkcs opened on Nov 29, 2024

• Multipart FormData - Boolean validation issue

  cdimascio/express-openapi-validator#992 · Filter by author elvince opened on Oct 8, 2024
  2