---
title: "CVE-2024-57077: utils-extend Prototype Pollution"
url: https://erroneo.us/security/cve/CVE-2024-57077/
description: "CVE-2024-57077 (utils-extend (npm)): The latest version of utils-extend (1.0.8) is vulnerable to Prototype Pollution through the entry function(s)…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-02-05
date_modified: 2025-09-03
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2024-57077"
kev: false
cvss: 9.1
epss: 0.0049
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2024-57077: utils-extend Prototype Pollution

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.5% , percentile 41: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 41% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes utils-extend (npm) <= 1.0.8, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

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.

## Affected packages

- npm `utils-extend` <= 1.0.8 → fixed: none listed

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.49% probability of exploitation activity in the next 30 days; percentile 41.

## Sources

- [GitHub Advisory GHSA-7qgg-vw88-cc99](https://github.com/advisories/GHSA-7qgg-vw88-cc99)
- [CVE.org record CVE-2024-57077](https://www.cve.org/CVERecord?id=CVE-2024-57077)
- [NVD entry CVE-2024-57077](https://nvd.nist.gov/vuln/detail/CVE-2024-57077)
- [gist.github.com](https://gist.github.com/tariqhawis/64bac50f8c2706e6880e45d50a507114)

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Source page: https://erroneo.us/security/cve/CVE-2024-57077/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt