Vulnerability Description
@nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the _copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object properties without an Object.hasOwnProperty check, and does not filter dangerous keys (__proto__, constructor, prototype). This allows an attacker to pollute the prototype chain of all objects in the application. Version 0.14.0 patches the issue.
Related Weaknesses (CWE)
References
- https://github.com/nevware21/ts-utils/commit/5e887f4e2fbee7160c8f501634c45e6a229
- https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43
- https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43
FAQ
What is CVE-2026-46681?
CVE-2026-46681 is a documented vulnerability. @nevware21/ts-utils is a comprehensive TypeScript/JavaScript utility library. Prior to version 0.14.0, the _copyProps function in lib/src/object/copy.ts uses for...in to iterate over source object pro...
How severe is CVE-2026-46681?
CVSS scoring is not yet available for CVE-2026-46681. Check NVD for updates.
Is there a patch for CVE-2026-46681?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.