Details

Summary

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.

Impact

Only apps that match all of the following conditions are affected:

• The user uses Windows
• An attacker can place a file with the malicious filename containing & or %
• Either of
  • An attacker can inject an environment variable with a malicious value
  • An attacker can add a NTFS alternate data stream to the file placed

Details

Unlike .sh files, .bat / .cmd files on Windows cannot be called directly using child_process.spawn and requires passing them as an argument of cmd.exe. To do so, launch-editor escapes the arguments passed to cmd.exe. But launch-editor did not escape % which is used for environment variables.

Because launch-editor checks if the argument matches an existing filename, the attack requires the attacker to be able to place a file.

• If the attacker can inject an environment variable as well, they can include the subcommand in the env variable (e.g. set &calc.exe to %ENV%) and call launchEditor with something%ENV%.
• If the attacker can place a NTFS alternate data stream to the file (e.g. a NTFS alternate data stream named ~-38%calc.exe), they can call launchEditor with something %CMDCMDLINE:~-38%calc.exe.
• If the attacker can create a filename containing the %CD% and the subcommand (e.g. &calc.exe ), they can call launchEditor with ./%CD%

Severity

• CVSS Score: 6.3 / 10 (Medium)
• Vector String: 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

References

• https://github.com/vitejs/launch-editor/security/advisories/GHSA-698v-4r3x-3vcv
• https://nvd.nist.gov/vuln/detail/CVE-2026-112943
• 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
• https://github.com/advisories/GHSA-698v-4r3x-3vcv

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Summary

launch-editor checked fs.existsSync(fileName) before passing a supplied path to an editor command. On Windows, an attacker can bypass this check with a crafted path ending in \\..:line:column. This removes the requirement that the attacker be able to place a file with a malicious filename.

Combined with the % escaping issue described in GHSA-698v-4r3x-3vcv, this bypass can lead to OS command injection when an attacker controls the file argument.

Impact

Only apps that runs on Windows is affected.

Details

The earlier advisory assumed that fs.existsSync() required an attacker-controlled filename to exist. This advisory covers a bypass of that requirement.

A crafted value ending in \\..:1:1 is interpreted differently by launch-editor-middleware, launch-editor, and Windows:

1. launch-editor-middleware calls path.resolve() while the final path component is ..:1:1, so it is not treated as a parent-directory component.
2. launch-editor treats :1:1 as a line-and-column suffix and removes it, leaving a path ending in \\...
3. On Windows, fs.existsSync() accepts the resulting path as the existing parent directory even though the attacker-controlled preceding component does not exist.
4. Because the existence check passes, the crafted filename reaches the Windows shell command.

Severity

• CVSS Score: 7.5 / 10 (High)
• Vector String: 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

References

• https://github.com/vitejs/launch-editor/security/advisories/GHSA-587h-7wmj-h5pm
• https://nvd.nist.gov/vuln/detail/CVE-2026-112942
• https://github.com/vitejs/launch-editor/commit/f13cd835d4b8e860b1d4d080ad8a490cc2463679
• https://github.com/vitejs/launch-editor/releases/tag/v2.14.2
• https://github.com/advisories/GHSA-587h-7wmj-h5pm

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

Details

Summary

launch-editor forwarded file paths directly to editors without sanitization. If a path resembles a CLI flag, editors like Vim may interpret it as a command, potentially causing unintended file overwrites or command execution.

Impact

Direct launch-editor users

Only apps that match all of the following conditions are affected:

• The attacker is able to create a file system entry (e.g. a file or directory) starting with + or - in the working directory
• The user uses or the app specifies any of the following editors:
  • Vim (including gVim)
  • MacVim
  • Emacs (including Emacsclient)
  • Notepad++ (only if using a plugin exposing dangerous operations via plugin messages)
• The first argument of launchEditor can start with + or - or the user is using WSL

launch-editor-middleware users

Only apps that match the following conditions are affected:

• The attacker is able to create a file system entry (e.g. a file or directory) starting with + or - in the working directory
• The user uses or the app specifies any of the following editors:
  • Vim (including gVim)
  • MacVim
  • Emacs (including Emacsclient)
  • Notepad++ (only if using a plugin exposing dangerous operations via plugin messages)
• launch-editor older than v2.2.0 is used, or the user is using WSL

Vite users

Only apps that match the following conditions are affected:

• The attacker is able to create a file system entry (e.g. a file or directory) starting with + or - in the working directory
• The user uses or the app specifies any of the following editors:
  • Vim (including gVim)
  • MacVim
  • Emacs (including Emacsclient)
  • Notepad++ (only if using a plugin exposing dangerous operations via plugin messages)
• The user is using WSL

Details

launchEditor(file) function passes the file name as-is to the editor if the file with that file name exists. If the file name starts with - (also + for Vim), the editor treats them as flags rather than positional arguments. For example, Vim treats arguments starting with + as an Ex command. As a result, an existing relative directory such as:

+call writefile(["SAFE_MARKER"],"LAUNCH_EDITOR_MARKER")|qa!

is not treated as a filename when passed to Vim. Vim executes the embedded Ex command.

The following editor has a potentially destructive operation exposed to the CLI arguments:

• Vim (including gVim)
• MacVim
• Emacs (including Emacsclient)
• Notepad++ (only if using a plugin exposing dangerous operations via plugin messages)

launch-editor-middleware v2.2.0+ converts the passed file path to an absolute path so those are not affected as long as the user is not using WSL. For WSL, launch-editor converts the paths to relative paths internally, so those are still affected.

Vite 2.0.0+ uses launch-editor-middleware v2.2.0+ so the WSL users are only affected.

Severity

• CVSS Score: 6.3 / 10 (Medium)
• Vector String: 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

References

• https://github.com/vitejs/launch-editor/security/advisories/GHSA-r825-w8mm-5pxw
• https://nvd.nist.gov/vuln/detail/CVE-2026-112944
• https://github.com/vitejs/launch-editor/pull/156
• https://github.com/vitejs/launch-editor/commit/f6e6701bb1f16f2dd242b321374f1b6cca6eb6d4
• https://github.com/vitejs/launch-editor/releases/tag/v2.14.2
• https://github.com/advisories/GHSA-r825-w8mm-5pxw

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

v8.1.6

Compare Source

Please refer to CHANGELOG.md for details.

v8.1.5

Compare Source

Features

• add input to server.fs.allow (#​23035) (95a3cda)
• bundled-dev: reload once after rebuild instead of via the fallback page (#​23106) (b24381d)
• bundled-dev: support worker file update accepted by HMR (#​23068) (0d04351)
• config: include column in config incompatibility location (#​23064) (8a24572)
• dev: resolve interface name for explicit host in network URLs (#​22965) (3ac77d9)
• add input option (#​22642) (9beae37)
• config: warn features incompatible with native loader in bundle loader (#​22850) (05302b0)
• css: export PostCSS config type for type-safe configs (#​22792) (302c755)
• dev: label network URLs with their interface name (#​22830) (78accc4)
• optimizer: support aube lockfile (#​22813) (6319827)
• optimizer: support nub lockfile (#​22891) (65d3604)
• update rolldown-related dependencies and use client-side HMR in bundled-dev (#​22961) (960e9ef)
• wasm: expand test suite, unwrap WebAssembly.Global and enable js-string builtins (#​22674) (9e79b51)

Bug Fixes

• bundledDev: print build errors to the terminal when an HMR update fails (#​23024) (41c4658)
• deps: update all non-major dependencies (#​23069) (4c07b74)
• hmr: preserve environment snapshot during server restart (#​22992) (b1186c3)
• importAnalysis: interop imports injected into optimized dep files by plugins (#​23029) (8c2a87d)
• module-runner: keep stack trace interception working when Object.prototype is frozen (#​23073) (599c5b0)
• server: strip base in indexHtml module graph lookup (#​22932) (fa005d1)
• support resolving top-level input option with plugins (#​23101) (41df81a)
• build: map CSS chunks in chunk import maps (fix #​22946) (#​22947) (e16ff3a)
• config: exclude virtual modules from native config compat check (#​22979) (2ced1fe)
• css: rewrite urls in OnceExit-injected content (#​22983) (abb793e)
• deps: update all non-major dependencies (#​22985) (04f345b)
• deps: update dependency magic-string to v1 (#​22998) (c60b4d7)
• hmr: remove hot data after prune (#​23002) (be96316)
• resolve root to real path (#​22832) (55bba7b)

Performance Improvements

• config: skip native config compat check when warning is ignored (#​23000) (18535d1)
• optimizer: check popular package manager lockfiles first (#​22909) (14fcb66)

Documentation

• config: correct cacheDir default fallback description (#​23060) (aafa103)
• remove @experimental from resolve.tsconfigPaths JSDoc (#​23006) (961643a)

Miscellaneous Chores

• fix ts erros in test cases (#​22972) (f654769)

Tests

• config CJS module vars in ESM case (#​23010) (d8cd388)

Beta Changelogs

8.2.0-beta.0 (2026-07-22)

See 8.2.0-beta.0 changelog

v8.1.4

Compare Source

Features

• legacy: prefer oxc as minifier (fix #​21973) (#​22468) (ab5dafa)

Bug Fixes

• build: add workaround for building on stackblitz (#​22840) (575c32c)
• build: keep import.meta.url in preload function as-is (#​22839) (f1f90ed)
• deps: update all non-major dependencies (#​22865) (d4295a9)
• deps: update rolldown-related dependencies (#​22866) (7cf07e4)
• html: avoid backtracking in import-only check (#​22848) (b5868c0)
• optimizer: avoid optimizer run for transform request before init (#​22852) (72a5e21)
• ssr: align named export function call stacktrace column with Node (#​22829) (173a1b6)
• strip pure CSS chunk imports when chunkImportMap is enabled (#​22841) (648bd04)

Documentation

• fix incorrect @default for server.cors (#​22859) (70435b2)

Miscellaneous Chores

• deps: update dependency postcss-modules to v9 (#​22867) (a9539d6)

Code Refactoring

• eliminate ineffectiveDynamicImport warn (#​22876) (ea22fb3)

Tests

• avoid warnings (#​22851) (af21ab6)

Build System

• remove the custom onLog function (#​22878) (2c4a217)
• replace deprecated onwarn with onLog (#​22741) (c581b55)

v8.1.3

Compare Source

Bug Fixes

• css: inject inlined CSS after the shebang line (#​22717) (1534d36)
• deps: bump es-module-lexer to 2.3.0 (#​22838) (7103c3a)
• preload css for nested dynamic imports (#​22759) (2c53054)
• ssr: correct stacktrace column position for first line (#​22828) (c4acd69)

v8.1.2

Compare Source

Bug Fixes

• deps: revert es-module-lexer to 2.1.0 (#​22827) (0d3bd7c)
• restore, "fix: resolve pnpm .modules.yaml from workspace root instead of cwd (#​22757)" (#​22825) (efb98cc)
• revert, "fix: escape ids with multiple null bytes (#​22687)" (cccef55)
• revert, "fix: resolve pnpm .modules.yaml from workspace root instead of cwd (#​22757)" (cf97711)

v8.1.1

Compare Source

Features

• update dynamic import warning to link to Vite docs (#​22823) (62bd7af)

Bug Fixes

• bundled-dev: avoid stack overflow on import.meta.hot.invalidate() (#​22797) (709eb8e)
• bundled-dev: serve assets emitted during HMR/lazy compile (#​22745) (5876b2c)
• bundledDev: skip plugin transform hooks for rolldown-lazy stub modules (#​22778) (8f925e2)
• css: preserve dollar signs in external @import urls with lightningcss (#​22718) (9fa7ab4)
• css: resolve tsconfig paths in CSS and Sass @​import (#​22775) (ef0b891)
• deps: update all non-major dependencies (#​22734) (e635f49)
• deps: update all non-major dependencies (#​22804) (8837400)
• deps: update rolldown-related dependencies (#​22591) (2ce6677)
• escape ids with multiple null bytes (#​22687) (833fc30)
• hide console window when running 'net use' on Windows (#​22698) (92b63f2)
• ignore bundled config temp dir (#​22800) (043a810)
• invert esbuild.jsxSideEffects when converting to oxc.jsx.pure (#​22809) (33895ba)
• optimize-deps: ignore ERR_CLOSED_SERVER in scanner (#​22784) (085a0ab)
• optimizer: scanner should resolve input from root (#​22769) (9722b07)
• resolve pnpm .modules.yaml from workspace root instead of cwd (#​22757) (2531ac7)
• return sourcemap field from some plugins that were lacking (#​22782) (7e18bf8)
• server: handle malformed URI in indexHtmlMiddleware (#​22781) (84f5ccc)

Miscellaneous Chores

• improve dependency optimizer messages (#​22549) (092cb3b)

Code Refactoring

• css: remove lightningcss null byte bug workaround (#​22822) (2dafd3b)
• use pre-defined environments variable to avoid duplicate Object.values calls (#​22790) (1113acf)

Tests

• enable "manual chunk path" test and remove "worker.format error" test (#​22824) (c088511)