Language: JavaScript
Label: safe
CWE: CWE-1333 \u2014 Inefficient Regular Expression Complexity
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

Code:
function validateEntityName(name){
    for (let i = 0; i < specialChar.length; i++) {
        const ch = specialChar[i];
        if(name.indexOf(ch) !== -1) throw new Error(`Invalid character ${ch} in entity name`);
    }
    return name;
}