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.
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23413
- https://github.com/Stuk/jszip/pull/766
- https://github.com/Stuk/jszip/commit/22357494f424178cb416cdb7d93b26dd4f824b36
- https://github.com/Stuk/jszip/blob/master/lib/object.js%23L88
- https://snyk.io/vuln/SNYK-JS-JSZIP-1251497
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1251499
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1251498
- https://github.com/advisories/GHSA-jg8v-48h5-wgxg