Issues

• Bug: DataMasking.erase with masking_rules ignores JSON string input

  aws-powertools/powertools-lambda-python#8636 · Filter by author LemonCondor opened on Oct 19, 2026

• Bug: Logger timestamp is off by up to one second when use_datetime_directive=True

  aws-powertools/powertools-lambda-python#8631 · Filter by author auraseb opened on Oct 19, 2026
  2

• Bug: VPC Lattice v2 x509 identity fields are always None

  aws-powertools/powertools-lambda-python#8627 · Filter by author LuisFigueroaG opened on Oct 19, 2026

• Bug: DynamoDBProvider and AppConfigProvider surface bare KeyError text as the error message

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8601 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: non-UTF-8 SecretBinary with transform='binary' or 'auto' raises UnicodeDecodeError instead of TransformParameterError

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8600 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: set_parameter and set_secret do not invalidate the cached value

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8599 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: docs say recursive defaults to True for get_multiple, but SSMProvider uses False

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8598 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: get_parameters_by_name lets botocore ClientError escape instead of GetParameterError

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8597 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: SecretsProvider.get_multiple appends to the caller's Filters list on every call

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8596 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  1

• Bug: GetSecretError does not inherit from GetParameterError as the docstrings say

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8595 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  3

  

• Bug: get_parameters_by_name with raise_on_error=False still raises on transform errors in the decrypt path, and caches None

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8594 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: get_parameters_by_name and get() use different cache keys, so they never share cache entries

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8593 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: get_secrets_by_name returns secrets that were not requested, and a different result once cached

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8592 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  2

  

• Bug: parameters cache key ignores sdk_options, decrypt and recursive, so different requests share one cached value

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8591 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  2

  

• Bug: get_parameters_by_name mutates the caller's parameters dict, so later global decrypt/transform are ignored

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8590 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  2

  

• Bug: AppConfigProvider never recovers after get_latest_configuration rejects the poll token

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8589 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  3

  

• Bug: get_app_config ignores environment and application after the first call

  buggood first issueparameters
  aws-powertools/powertools-lambda-python#8588 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  2

  

• Bug: get_parameters_by_name raises KeyError for names with a version or label selector

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8587 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  3

  

• Bug: get_parameters_by_name returns {} instead of raising when GetParameters fails with raise_on_error=True

  buggood first issueparameterstriage
  aws-powertools/powertools-lambda-python#8586 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  1

• Bug: Bedrock Agent kwargs and null content type, AppSync decorator returns None and context leak, Router duplicates, Function URL base path, Depends() with a class

  bugevent_handlersgood first issuetriage
  aws-powertools/powertools-lambda-python#8584 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: OpenAPI schema inaccuracies (responses content, Pydantic Query models, ValidationError.msg, x- extensions, Path alias, Decimal NaN)

  bugevent_handlersgood first issuetriage
  aws-powertools/powertools-lambda-python#8583 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  2

  

• Bug: AppSync Events swallows UnauthorizedException in non-aggregate handlers, class-based async middleware leaks a coroutine, HttpResolverLocal is not usable as a Lambda handler

  bugevent_handlersgood first issuetriage
  aws-powertools/powertools-lambda-python#8582 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  4

  

• Bug: header validation is inconsistent across resolvers (single-value list, repeated headers, Content-Type casing)

  bugevent_handlersgood first issuetriage
  aws-powertools/powertools-lambda-python#8581 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.39.0
  1

• Bug: routing and Response issues: unescaped route regex, regex strip_prefixes, gzip q=0, bytes JSON body, is_json() casing, missing Vary: Origin

  bugevent_handlersgood first issuetriage
  aws-powertools/powertools-lambda-python#8580 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  2

  

• Bug: exception handlers hijack the default 404 and bypass _to_response (body null on ALB, dict/tuple crash)

  bugevent_handlersgood first issuetriage
  aws-powertools/powertools-lambda-python#8579 · Filter by author leandrodamascena opened on Oct 18, 2026 · 3.38.0
  2