GHSA-4r97-78gf-q24v: Duplicate Advisory: Prototype Pollution in klona

September 4, 2020 (updated July 18, 2025)

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-8f89-2fwj-5v5r. This link is maintained to preserve external references.

Original Description

Versions of klona prior to 1.1.1 are vulnerable to prototype pollution. The package does not restrict the modification of an Object’s prototype when cloning objects, which may allow an attacker to add or modify an existing property that will exist on all objects.

Recommendation

Upgrade to version 1.1.1 or later.

References

github.com/advisories/GHSA-4r97-78gf-q24v
hackerone.com/reports/778414
www.npmjs.com/advisories/1463

Code Behaviors & Features

Detect and mitigate GHSA-4r97-78gf-q24v with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →