CVE-2026-53632 — NTLMv2 hash disclosure via UNC path handling on Windows
launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.1, the launch-editor NPM package accesses arbitrary paths including Windows UNC …
Published: 2026-06-22 · CVSS: 5.5 · CVSS 4.0
launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.1, the launch-editor NPM package accesses arbitrary paths including Windows UNC paths. When a UNC path is opened, Windows automatically attempts NTLM authentication to the remote host, causing the user’s NTLMv2 password hash to be leaked to an attacker-controlled SMB server. This can result in credential compromise through offline hash cracking. This vulnerability is fixed in 2.14.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7