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Dot diver is a lightweight, powerful, and dependency-free TypeScript utility library that provides types and functions to work with object paths in dot notation. In versions prior to 1.0.2 there is a Prototype Pollution vulnerability in the `setByPath` function which can leads to remote code execution (RCE). This issue has been addressed in commit `98daf567` which has been included in release 1.0.2. Users are advised to upgrade. There are no known workarounds to this vulnerability.

GHSA-9w5f-mw3p-pj47 — Prototype Pollution(PP) vulnerability in setByPath

Affected: npm: @clickbar/dot-diver

### Summary There is a Prototype Pollution(PP) vulnerability in dot-diver. It can leads to RCE.

### Details ```javascript //https://github.com/clickbar/dot-diver/tree/main/src/index.ts:277

// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access objectToSet[lastKey] = value ``` In this code, there is no validation for Prototpye Pollution.

### PoC ```javascript import { getByPath, setByPath } from '@clickbar/dot-diver'

console.log({}.polluted); // undefined setByPath({},'constructor.prototype.polluted', 'foo'); console.log({}.polluted); // foo ```

### Impact It is Prototype Pollution(PP) and it can leads to Dos, RCE, etc.

### Credits Team : NodeBoB

최지혁 ( Jihyeok Choi )

이동하 ( Lee Dong Ha of ZeroPointer Lab )

강성현 ( kang seonghyeun )

박성진 ( sungjin park )

김찬호 ( Chanho Kim )

이수영 ( Lee Su Young )

김민욱 ( MinUk Kim )

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GHSA-9w5f-mw3p-pj47 — Prototype Pollution(PP) vulnerability in setByPath

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