{"schema":"threatline.record/2","record":{"id":"CVE-2026-112943","aliases":["GHSA-698v-4r3x-3vcv"],"summary":"launch-editor: escapeCmdArgs() omits % escaping on Windows","details":"### Summary\n\n`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.\n\n### Impact\n\nOnly apps that match all of the following conditions are affected:\n\n- The user uses Windows\n- An attacker can place a file with the malicious filename containing `&` or `%`\n- Either of\n  - An attacker can inject an environment variable with a malicious value\n  - An attacker can add a NTFS alternate data stream to the file placed\n\n### Details\n\nUnlike `.sh` files, `.bat` / `.cmd` files on Windows cannot be called directly using [`child_process.spawn`](https://nodejs.org/docs/latest-v24.x/api/child_process.html#child_processspawncommand-args-options) 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.\n\nBecause `launch-editor` checks if the argument matches an existing filename, the attack requires the attacker to be able to place a file.\n\n- 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%`.\n- 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`.\n- If the attacker can create a filename containing the `%CD%` and the subcommand (e.g. `&calc.exe `), they can call `launchEditor` with `./%CD%`","categories":["Libraries & packages"],"product":"launch-editor","vendor":"vitejs","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory 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