Description
launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor-middleware processes an attacker-controlled Windows file argument where the file argument ends in a parent-directory component plus a line-and-column suffix: the path is resolved while the suffix is still present, and launch-editor removes the suffix before its existsSync check, leaving the existing parent directory for existsSync and allowing the attacker-controlled file argument to pass filename existence validation without requiring the malicious filename to exist. The bypass can lead to OS command injection when combined with the separately described Windows percent-expansion flaw. This issue is fixed in version 2.14.2.
Published: 2026-10-20
Score: 7.5 High
EPSS: n/a
KEV: No
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Remediation

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History

Tue, 20 Oct 2026 17:15:00 +0000

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

Tue, 20 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Description launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor-middleware processes an attacker-controlled Windows file argument where the file argument ends in a parent-directory component plus a line-and-column suffix: the path is resolved while the suffix is still present, and launch-editor removes the suffix before its existsSync check, leaving the existing parent directory for existsSync and allowing the attacker-controlled file argument to pass filename existence validation without requiring the malicious filename to exist. The bypass can lead to OS command injection when combined with the separately described Windows percent-expansion flaw. This issue is fixed in version 2.14.2.
Title launch-editor: `fs.existsSync()` existence check can be bypassed on Windows
Weaknesses CWE-77
References
Metrics cvssV4_0

{'score': 7.5, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Vitejs Launch-editor Vite Vite-plus
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-20T14:48:06.676Z

Reserved: 2026-10-19T21:30:47.245Z

Link: CVE-2026-112942

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T15:17:17.230

Modified: 2026-10-20T15:17:17.230

Link: CVE-2026-112942

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-20T17:30:13Z

Weaknesses
  • CWE-77

    Improper Neutralization of Special Elements used in a Command ('Command Injection')