CVE-2021-23568: Prototype Pollution in extend2

January 10, 2022 (updated January 13, 2022)

The package extend2 is vulnerable to Prototype Pollution via the extend function due to unsafe recursive merge.

References

github.com/advisories/GHSA-gjm5-83cw-p3p2
github.com/eggjs/extend2/blob/master/index.js%23L50-L60
github.com/eggjs/extend2/commit/aa332a59116c8398976434b57ea477c6823054f8
github.com/eggjs/extend2/pull/2
nvd.nist.gov/vuln/detail/CVE-2021-23568
snyk.io/vuln/SNYK-JS-EXTEND2-2320315

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