Issues

• [BUG][RUST] chrono date-time path/query/header params are not serialized as RFC 3339

  OpenAPITools/openapi-generator#25297 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][rust-axum] Recursive models generate infinitely sized types (E0072)

  OpenAPITools/openapi-generator#25295 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][rust-axum] Range response codes (4XX, 5XX) generate code that does not compile

  OpenAPITools/openapi-generator#25293 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][RUST] enumUnknownDefaultCase does not make unknown enum values deserialize

  OpenAPITools/openapi-generator#25291 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][core] SIMPLIFY_ANYOF_STRING_AND_ENUM_STRING has no effect on OpenAPI 3.1 specs

  OpenAPITools/openapi-generator#25289 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][openapi-normalizer] SIMPLIFY_BOOLEAN_ENUM has no effect on OpenAPI 3.1 specs

  OpenAPITools/openapi-generator#25287 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][RUST] reqwest client picks the wrong error/success variant when several responses share a schema

  OpenAPITools/openapi-generator#25285 · Filter by author teovillanueva opened on Oct 17, 2026

• [BUG][rust-axum] default responses are sent with status 0: handler panics or returns 500

  OpenAPITools/openapi-generator#25283 · Filter by author teovillanueva opened on Oct 17, 2026

• > <!-- See [CONTRIBUTING.md](../CONTRIBUTING.md#proposing-a-design) for more information.-->

  OpenAPITools/openapi-generator#25278 · Filter by author rafaelmejiaaguilar691-sudo opened on Oct 16, 2026

• [BUG][typescript-fetch] Nested oneOf: parent imports instanceOf<Member> that is never emitted (TS2724/TS2305)

  OpenAPITools/openapi-generator#25274 · Filter by author daniele-casciani opened on Oct 16, 2026
  1

• [BUG][Go] Testify dependency is omitted unless spec requires OAuth2

  Issue: Bug
  OpenAPITools/openapi-generator#25270 · Filter by author carmanchris31 opened on Oct 15, 2026
  2

• [BUG][csharp][generichost] Serializing a model with an unset optional inline string enum throws "Nullable object must have a value"

  Issue: Bug
  OpenAPITools/openapi-generator#25267 · Filter by author mgeri opened on Oct 15, 2026

• [REQ][Java][Client][MicroProfile] Add an option to omit @RegisterRestClient during client generation

  Enhancement: Feature
  OpenAPITools/openapi-generator#25264 · Filter by author icirloprivate opened on Oct 15, 2026
  1

• [BUG] [Go] pattern values containing control characters are copied raw into generated struct tags, producing invalid Go source (illegal character NUL)

  Issue: Bug
  OpenAPITools/openapi-generator#25263 · Filter by author Fyusel opened on Oct 15, 2026

• [BUG][rust-server] serde_valid validation stops at generated model wrappers

  OpenAPITools/openapi-generator#25261 · Filter by author EricLiu2000 opened on Oct 15, 2026

• [BUG][RUST] Reqwest - encoding of spaces in path parameters

  Issue: Bug
  OpenAPITools/openapi-generator#25257 · Filter by author GlenWright opened on Oct 14, 2026
  3

• [BUG][rust-axum] additionalProperties: false does not reject unknown JSON fields

  OpenAPITools/openapi-generator#25255 · Filter by author lucarlig opened on Oct 14, 2026

• [BUG][JAVA][SPRING] HV000271 still logged for non-required @RequestBody Optional<Dto> (7.26.0)

  OpenAPITools/openapi-generator#25249 · Filter by author rfsimoes opened on Oct 13, 2026

• [BUG][typescript-fetch] Generated runtime requires DOM types in native-fetch Node consumers

  Issue: Bug
  OpenAPITools/openapi-generator#25244 · Filter by author jasper-payflip opened on Oct 13, 2026

• [BUG] ExampleGenerator returns the string "{}" (or null) for type: object schemas without properties

  OpenAPITools/openapi-generator#25237 · Filter by author knusth opened on Oct 12, 2026

• [BUG] ExampleGenerator: generated array examples ignore minItems

  OpenAPITools/openapi-generator#25235 · Filter by author knusth opened on Oct 12, 2026
  1

• [BUG] ExampleGenerator: generated numeric examples violate maximum (negative, without minimum) and ignore exclusiveMinimum/exclusiveMaximum

  OpenAPITools/openapi-generator#25234 · Filter by author knusth opened on Oct 12, 2026

• [BUG] OpenApiEvaluator reports "default value not in enum" for numerically equal values with different scale (e.g. 1.5 and 1.50)

  Issue: Bug
  OpenAPITools/openapi-generator#25233 · Filter by author gabrielpires01 opened on Oct 12, 2026

• [BUG] OpenApiEvaluator emits "Unused model" warnings even when recommendations are disabled

  Issue: Bug
  OpenAPITools/openapi-generator#25232 · Filter by author gabrielpires01 opened on Oct 12, 2026

• [BUG] Description HTML2 generator: needs helpers.js

  Issue: Bug
  OpenAPITools/openapi-generator#25228 · Filter by author ascotto-rm opened on Oct 12, 2026