Language: Go
Label: safe
CWE: CWE-203 \u2014 Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

Code:
func (cr *captchaRepo) DelCaptcha(ctx context.Context, key string) (err error) {
	err = cr.data.Cache.Del(ctx, key)
	if err != nil {
		log.Debug(err)
	}
	return nil
}