dot-access 0.0.3 through 1.0.0 contains a code injection vulnerability that allows remote attackers to execute JavaScript by supplying crafted paths to get(). The path is concatenated into a new Function body in index.js, so attackers can reach constructor.constructor to load childprocess and run operating system commands in the Node.js process.

dot-access through 1.0.0 contains a prototype pollution vulnerability that allows attackers to modify Object.prototype by supplying a crafted dotted path to set(). Attackers controlling the path, such as through user-supplied field names, can use proto segments to inject properties into all objects, altering authorization flags and option defaults or crashing the process.