CVE-2026-50574

yt-dlp is a command-line audio/video downloader. Prior to 2026.06.09, if aria2c is used as an external downloader for a fragmented manifest format (such as an HLS/DASH stream), yt-dlp passes insufficiently sanitized input to aria2c that allows an attacker to perform an arbitrary file write. On Windows platforms, this can lead to immediate arbitrary code execution. On non-Windows platforms, this can lead to arbitrary code execution upon the next invocation of yt-dlp. This vulnerability is fixed in 2026.06.09.

Score

CVSS 3.1 9.6 Critical

Status

Analyzed - security-advisories@github.com

Published

2026-06-23

Last modified

2026-06-25

Weaknesses

CWE-74

Affected products

• Yt-dlp (Yt-dlp)
• Yt-dlp (Yt-dlp Project)

References

• https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-vx4q-3cr2-7cg2