# Unchecked Error Return Values

- ID: go-unchecked-errors
- Severity: MEDIUM
- CWE: Unchecked Return Value (CWE-252)
- Languages: Go

## Description

Error return value ignored using blank identifier (_).

## Remediation

Check all error return values and handle appropriately.

```go
data, err := ioutil.ReadFile(path)
if err != nil {
    return fmt.Errorf("failed to read file: %w", err)
}
```

Learn more: https://shoulder.dev/learn/go/cwe-252/unchecked-errors

## Related Rules

- **Unchecked Return Value from Critical Operations** [HIGH]: