---
id: CVE-2020-7639
title: >-
  eivindfjeldstad-dot below 1.0.3 is vulnerable to Prototype Pollution.The
  function 'set' could be tricked into adding or modifying properties of
  'Object.prototype' using a '__proto__' payload.
summary: >-
  eivindfjeldstad-dot below 1.0.3 is vulnerable to Prototype Pollution.The
  function 'set' could be tricked into adding or modifying properties of
  'Object.prototype' using a '__proto__' payload.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-1321
vendor: dot_project
product: dot
affected:
  - dot < 1.0.3
patched:
  - dot 1.0.3
published: '2020-04-06'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:17:31.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2020-7639'
references:
  - url: >-
      https://github.com/eivindfjeldstad/dot/commit/774e4b0c97ca35d2ae40df2cd14428d37dd07a0b
    label: report@snyk.io
  - url: 'https://snyk.io/vuln/SNYK-JS-EIVIFJDOT-564435'
    label: report@snyk.io
  - url: >-
      https://github.com/eivindfjeldstad/dot/commit/774e4b0c97ca35d2ae40df2cd14428d37dd07a0b
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://snyk.io/vuln/SNYK-JS-EIVIFJDOT-564435'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01097
epssPercentile: 0.64561
ingestedAt: '2026-10-08T22:11:53.712Z'
---

## Overview

eivindfjeldstad-dot below 1.0.3 is vulnerable to Prototype Pollution.The function 'set' could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.

## Affected

- `dot < 1.0.3`

## Remediation

Upgrade past the affected range:

- `dot 1.0.3`