CVE-2021-25943: Prototype pollution in 101

May 17, 2021 (updated May 1, 2025)

Prototype pollution vulnerability in ‘101’ versions 1.0.0 through 1.6.3 allows an attacker to cause a denial of service and may lead to remote code execution.

References

github.com/advisories/GHSA-cwcx-rxgc-cmw3
github.com/tjmehta/101
github.com/tjmehta/101/blob/d87f63ce2a4cbdc476e8287abd78327c3144d646/set.js
nvd.nist.gov/vuln/detail/CVE-2021-25943
www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25943

Code Behaviors & Features

Detect and mitigate CVE-2021-25943 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 →