Command Injection Vulnerability in YoutubeDLSharp by Bluegrams
CVE-2025-43858

9.2CRITICAL

Key Information:

Vendor

Bluegrams

Status
Youtubedlsharp
Vendor
CVE Published:
24 April 2025

What is CVE-2025-43858?

YoutubeDLSharp, a library integrating with popular video downloaders youtube-dl and yt-dlp, is susceptible to command injection. Versions from 1.0.0-beta4 to prior 1.1.2 have an unsafe argument conversion that can allow an attacker to execute malicious commands via the Windows command prompt. This vulnerability arises when the 'UseWindowsEncodingWorkaround' setting, which is enabled by default, is utilized in built-in methods of the YoutubeDL.cs file, preventing users from disabling this behavior. Users are advised to upgrade to version 1.1.2 or later where this vulnerability has been addressed.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

YoutubeDLSharp >= 1.0.0-beta4, < 1.1.2

References

https://github.com/Bluegrams/YoutubeDLSharp/security/advi...
x_refsource_CONFIRM
https://github.com/Bluegrams/YoutubeDLSharp/commit/b60513...
x_refsource_MISC
https://github.com/Bluegrams/YoutubeDLSharp/commit/fdf325...
x_refsource_MISC

CVSS V3.1

Score:
9.2
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.