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  4. CVE 2026 112942 launch editor fsexistssync existence check can be
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Back to active CVEs
High · CVSS 7.5CVE-2026-112942

launch-editor: `fs.existsSync()` existence check can be bypassed on WindowsCVE-2026-112942

Answer in brief

CVE-2026-112942 records a High severity (CVSS 7.5) vulnerability in launch-editor: `fs.existsSync()` existence check can be bypassed on Windows. The current sources do not mark it as known exploited. The current feed maps vitejs/launch-editor (generic), vitejs/vite (generic), vitejs/vite-plus (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 20, 2026Updated Oct 20, 2026Source checked Oct 20, 2026First seen by HOL Oct 20, 2026Material review Oct 20, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps vitejs/launch-editor (generic), vitejs/vite (generic), vitejs/vite-plus (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
vitejs/launch-editorgeneric<2.14.22.14.2
vitejs/vitegeneric>=8.3.0 <8.3.3 || >=8.2.0 <8.2.4 || >=8.0.0 <8.1.6 || >=7.0.0 <7.3.7 || <6.4.46.4.4, 8.3.3, 8.2.4, 8.1.6, 7.3.7
vitejs/vite-plusgeneric<1.1.01.1.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for vitejs/launch-editor, vitejs/vite, vitejs/vite-plus.
  2. 2Review the reported fix. Update vitejs/launch-editor to 2.14.2; vitejs/vite to 6.4.4; vitejs/vite-plus to 1.1.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 20, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 20, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-77
Source
CVE List V5
Source checked
Oct 20, 2026
References
3 linked sources
Open source record