CVE-2021-23413

Published: Jul 25, 2021Modified: Jun 17, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitability: 3.9 / Impact: 1.4

Source: NVD

Description

This affects the package jszip before 3.7.0. Crafting a new zip file with filenames set to Object prototype values (e.g __proto__, toString, etc) results in a returned object with a modified prototype instance.

Affected (1)

Products: Jszip Project: Jszip

Jszip Project

1 product

Jszip

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Jszip Project Jszip	Before 3.7.0

References (12)

https://github.com/Stuk/jszip/blob/master/lib/object.js%23L88

Source: report@snyk.io

Broken Link

https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36

Source: report@snyk.io

PatchThird Party Advisory

https://github.com/Stuk/jszip/pull/766

Source: report@snyk.io

Third Party Advisory

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1251499

Source: report@snyk.io

ExploitPatchThird Party Advisory

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1251498

Source: report@snyk.io

ExploitPatchThird Party Advisory

https://snyk.io/vuln/SNYK-JS-JSZIP-1251497

Source: report@snyk.io

ExploitPatchThird Party Advisory

https://github.com/Stuk/jszip/blob/master/lib/object.js%23L88