Vulnerabilities 1 via 1 paths
Source npm
Package mergify

Find, fix and prevent vulnerabilities in your code.

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high severity

Prototype pollution

  • Vulnerable module: mergify
  • Introduced through: mergify@1.0.2

Detailed paths

  • Introduced through: mergify@1.0.2


mergify is an object.assign deep [unmaintained, use lodash/mergeWith instead].

Affected versions of this package are vulnerable to Prototype pollution. An attacker might inject properties on Object.prototype which could lead to Denial of Service.


Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package


A fix was pushed into the master branch but not yet published.