CWE-241Improper Handling of Unexpected Data Type

Description

The product does not handle or incorrectly handles when a particular element is not the expected type, e.g. it expects a digit (0-9) but is provided with a letter (A-Z).

Common consequences

• Integrity,Other→Varies by Context,Unexpected State

Potential mitigations

• Implementation
  [object Object]
• Implementation
  Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.

Related CWEs

Recent CVEs classified under this CWE