CVE-2026-46681

@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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/nevware21/ts-utils/commit/5e887f4e2fbee7160c8f501634c45e6a229e83bb
https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43
https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43

Configurations

No configuration.

History

21 Jul 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43 -~~	() https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43 -

21 Jul 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-21 15:16

Updated : 2026-07-21 16:17

NVD link : CVE-2026-46681

Mitre link : CVE-2026-46681

CVE.ORG link : CVE-2026-46681

JSON object : View

Products Affected

No product.

CWE

CWE-1321

Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

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