Arbitrary Command Injection in portprocesses

HIGH 8.8CVE-2021-23348 · GHSA-vm67-7vmg-66vm · SNYK-JS-PORTPROCESSES-1078536 · Published 31/03/2021 · updated 17/06/2026

In short

CVE-2021-23348 is a HIGH (CVSS 8.8) vulnerability affecting portprocesses (portprocesses project), portprocesses.
Chance of exploitation in the next 30 days (EPSS): 1.8%, higher than 78.9% of all vulnerabilities.
Fix: update to 1.0.5 or later.

Package	Affected versions	Patched versions
portprocesses portprocesses_project	`< 1.0.5`	`1.0.5`
portprocesses npm	`< 1.0.5`	`1.0.5`

Description

Impact

An Arbitrary Command Injection vulnerability was reported in portprocesses impacting versions <= 1.0.4.

Example (Proof of Concept)

The following example demonstrates the vulnerability and will run touch success therefore creating a file named success.

const portprocesses = require("portprocesses");

portprocesses.killProcess("$(touch success)");

NVD description

This affects the package portprocesses before 1.0.5. If (attacker-controlled) user input is given to the killProcess function, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

References

rrainn/PortProcesses security advisory · WEB
nvd.nist.gov/vuln/detail/CVE-2021-23348 · ADVISORY
rrainn/PortProcesses commit 8681121 · WEB
rrainn/PortProcesses · WEB
snyk.io/vuln/SNYK-JS-PORTPROCESSES-1078536 · WEB

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