Description
The package extend2 before 1.0.1 are vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.
Remediation
References
https://github.com/eggjs/extend2/blob/master/index.js%23L50-L60
https://github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8
https://github.com/eggjs/extend2/pull/2
https://snyk.io/vuln/SNYK-JS-EXTEND2-2320315
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