CVE-2021-23413: Denial of Service (DoS)

Published Jul 25, 2021
·
Updated

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.

Other sources

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 Software

3 affected componentsFixes available
npm/jszip<2.7.0
2.7.0
npm/jszip>=3.0.0<3.7.0
3.7.0
Jszip Project Jszip Node.js<3.7.0

Event History

Jul 25, 2021
CVE Published
via MITRE·01:10 PM
Data Sourced
via MITRE·01:10 PM
DescriptionSeverityWeakness
Aug 10, 2021
Advisory Published
04:02 PM
Jan 30, 2026
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-23413?

CVE-2021-23413 is a vulnerability that affects the package jszip before version 3.7.0.

2

How does CVE-2021-23413 affect jszip?

CVE-2021-23413 allows an attacker to craft a new zip file with filenames set to Object prototype values, resulting in a returned object with a modified prototype instance.

3

What is the severity of CVE-2021-23413?

CVE-2021-23413 has a severity rating of 5.3, which is classified as medium.

4

How can I fix the vulnerability CVE-2021-23413?

To fix CVE-2021-23413, upgrade to version 3.7.0 or later of jszip.

5

Where can I find more information about CVE-2021-23413?

You can find more information about CVE-2021-23413 at the following references: - [NVD](https://nvd.nist.gov/vuln/detail/CVE-2021-23413) - [GitHub Pull Request](https://github.com/Stuk/jszip/pull/766) - [GitHub Commit](https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36)

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