CVE-2020-26301: SSH2 Project SSH2

Critical severity, CVSS 10.0. EPSS: 3.8% chance of exploitation in the next 30 days.

ssh2 is client and server modules written in pure JavaScript for node.js. In ssh2 before version 1.4.0 there is a command injection vulnerability. The issue only exists on Windows. This issue may lead to remote code execution if a client of the library calls the vulnerable method with untrusted input. This is fixed in version 1.4.0.

Affected products

• SSH2 Project SSH2: before 1.4.0 (fixed in 1.4.0)

Published 2021-09-20. Last modified 2026-06-17.