yt-dlp and youtube-dl are command-line audio/video downloaders. Prior to 2026.7.4, the --write-link, --write-url-link, and --write-desktop-link options can write .url or .desktop shortcut files using attacker-controlled webpage_url or filename metadata without sufficient validation or escaping, allowing malicious file:// URI injection on Windows or newline-based desktop entry key injection on Linux that can execute commands if the generated shortcut is opened. This issue is fixed in version 2026.7.4.
https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-6v4j-43gg-vj32
https://github.com/yt-dlp/yt-dlp/releases/tag/2026.07.04
https://github.com/yt-dlp/yt-dlp/commit/b6590aaa1e3808155d69c9a79a797ae484163789