CVE-2026-46681

描述

## Summary 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. ## Details In _copyProps() (copy.ts lines 186-191), the code iterates all enumerable properties including inherited ones and dangerous keys like __proto__. Any object with a __proto__ key (e.g., from untrusted JSON input) will overwrite the target's prototype. ## PoC ``` const malicious = JSON.parse('{"__proto__": {"polluted": true}}'); objDeepCopy(malicious); console.log({}.polluted); // true ``` ## Suggested Fix Add objHasOwnProperty check and filter __proto__, constructor, prototype keys.

如何修補 CVE-2026-46681

要修補 CVE-2026-46681,請將受影響套件升級到下列已修補版本。

• —升級至 0.14.0 或更新版本

CVE-2026-46681 正在被利用嗎?

目前沒有被利用訊號。CVE-2026-46681 既不在 CISA KEV 也沒有最新的 EPSS 分數。

受影響套件(1)

• from 0, < 0.14.0

CVSS 分數

參考連結(2)

• PATCHgithub.com/nevware21/ts-utils
• WEBgithub.com/nevware21/ts-utils/security/advisories/GHSA-x7j8-49r8-mr43