{"id":"CVE-2026-46681","revision":"242bd99ec7c24afabec1b5161feb120e","records":[{"revision":"242bd99ec7c24afabec1b5161feb120e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46681","aliases":[],"title":"@nevware21/ts-utils: Prototype Pollution in objDeepCopy/objCopyProps via for...in without hasOwnProperty","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.","state":0,"publishedAt":"2026-07-21T14:02:03.732+00:00","modifiedAt":"2026-07-21T15:00:58.09+00:00","affected":[{"ecosystem":"Vendor product","name":"ts-utils","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nevware21\",\n                    \"product\": \"ts-utils\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.14.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","score":7.2,"severity":"HIGH"}],"references":["https://github.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43","https://github.com/nevware21/ts-utils/commit/5e887f4e2fbee7160c8f501634c45e6a229e83bb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46681","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46681","identifiers":["CVE-2026-46681"]},"retained":false,"historicalAffected":[]}],"coverage":[]}