CVE-2026-53632

NTLMv2 hash disclosure via UNC path handling on Windows

Published Jun 22, 2026 CVSS 4.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-v6wh-96g9-6wx3 launch-editor: NTLMv2 hash disclosure via UNC path handling on Windows
History
Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N'}

threat_severity

Moderate

Type Values Removed Values Added
First Time appeared Vitejs
Vitejs launch-editor
Vitejs vite
Vitejs vite-plus
Vendors & Products Vitejs
Vitejs launch-editor
Vitejs vite
Vitejs vite-plus
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title NTLMv2 hash disclosure via UNC path handling on Windows
Weaknesses CWE-522
CWE-73
References
Metrics cvssV4_0

{'score': 5.5, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 22, 2026, 5:30 PM
Reserved
Jun 9, 2026, 8:16 PM
Status
Deferred
Published
Jun 22, 2026, 6:16 PM
Modified
Jun 23, 2026, 3:44 PM
Severity
Moderate
Public date
Jun 22, 2026, 3:54 PM