shescape npm Package Vulnerability: Shell Injection Risk on Windows
The shescape npm package is reportedly vulnerable to shell injection via unescaped parentheses on Windows with CMD. Users of versions <2.1.14 or <3.0.1 should upgrade.
What happened
An early warning has been issued regarding a potential shell injection vulnerability in the shescape npm package. This vulnerability, tracked as GHSA-w4hw-qcx7-56pr, appears to affect versions of shescape prior to 2.1.14 and 3.0.1 when used on Windows with CMD. The issue arises from unescaped parentheses, which can allow an attacker to achieve shell injection depending on the original command.
The vulnerability has been patched in versions 2.1.14 and 3.0.1. It is recommended that users upgrade to one of these versions to mitigate the risk. If you are already using version 3, no further changes are required. If you are using version 2, it is advised to follow the migration guide to upgrade to version 3.
Professional software engineers assessing their exposure should consult the primary sources for more detailed information. The severity of this issue is currently under investigation, and it is important to stay updated with the latest advisories from the GitHub Advisory Database.
How 0Day mitigates this
shescape is anywhere in your dependency tree, the engineers who own the affected repositories get a push alert the moment it is flagged — no manual audit to remember to run.Read how this differs from waiting on a scanner to catch a known advisory, or see the exact, read-only access 0Day needs to do this for an organization.