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

Code Behaviors & Features

Detect and mitigate CVE-2021-23568 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →