Prototype Pollution Vulnerability in Enquirer by Node.js
CVE-2026-15187

5.3MEDIUM

Key Information:

Vendor

Node.js

Status
Enquirer
Vendor
CVE Published:
9 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15187?

A security flaw has been identified in the Enquirer library, impacting versions up to 2.4.1. The vulnerability lies within the Enquirer.set function of the Public Package API, where improper handling of the question.name argument leads to uncontrolled modifications of object prototype attributes. This flaw can be exploited remotely, allowing an attacker to manipulate system functionality maliciously. The issue was reported to the project maintainers before the exploit became publicly accessible, increasing the urgency for users to apply updates and mitigate potential risks.

Affected Version(s)

enquirer 2.4.0

enquirer 2.4.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-15187 - Proof of Concept

References

https://vuldb.com/vuln/377113
vdb-entrytechnical-description
https://vuldb.com/vuln/377113/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-15187
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dremig (VulDB User)
VulDB CNA Team
.