CVE-2026-53632

NTLMv2 hash disclosure via UNC path handling on Windows

State: Published
Severity: 5.5 Medium
Published: Jun 22, 2026
Updated: Jun 22, 2026
Reserved: Jun 9, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.5 Medium	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	GitHub_M

Weaknesses

CWE-73 External Control of File Name or Path
CWE-522 Insufficiently Protected Credentials

Affected Products

Product	Versions
launch-editorvitejs	< 2.14.1Affected
vitevitejs	>= 8.0.0, < 8.0.16Affected >= 7.0.0, < 7.3.5Affected < 6.4.3Affected
vite-plusvitejs	< 0.1.24Affected

References

https://github.com/vitejs/launch-editor/security/advisories/GHSA-v6wh-96g9-6wx3

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