CVE-2026-110816 qs.stringify with arrayFormat comma throws TypeError on array elements that cannot be coerced to a string

Summary qs.stringify with arrayFormat: 'comma' throws TypeError: Cannot convert object to primitive value when an array element cannot be coerced to a string, such as an object with an own non-callable toString "toString": "x" or a null-prototype object. The comma format joins array elements with...