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Critical · 9.2 CVE-2025-43858 EUVD-2025-11986GHSA-2jh5-g5ch-43q5

YoutubeDLSharp allows command injection on windows system due to non sanitized arguments

Published Apr 24, 2025 · Updated Apr 24, 2025 · Assigned by GitHub_M

Description

YoutubeDLSharp is a wrapper for the command-line video downloaders youtube-dl and yt-dlp. In versions starting from 1.0.0-beta4 and prior to 1.1.2, an unsafe conversion of arguments allows the injection of a malicious commands when starting `yt-dlp` from a commands prompt running on Windows OS with the `UseWindowsEncodingWorkaround` value defined to true (default behavior). If a user is using built-in methods from the YoutubeDL.cs file, the value is true by default and a user cannot disable it from these methods. This issue has been patched in version 1.1.2.

Affected products

VendorProductAffectedFixed
Bluegrams YoutubeDLSharp >= 1.0.0-beta4, < 1.1.2 —

Affected packages

EcosystemPackageAffectedFixedRecord
NuGet YoutubeDLSharp >= 1.0.0-beta4, < 1.1.2 1.1.2 GHSA-2jh5-g5ch-43q5

References