What’s Vulnerable › Vulnerabilities
CVE-2026-50574: yt-dlp: Arbitrary code execution via manifest downloads with aria2c
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-23 · updated 2026-06-26
- Weakness: CWE-74
Description
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.
Affected products
- yt-dlp: before 2026.06.09 — fixed in 2026.06.09
How to fix
Upgrade to a fixed version: yt-dlp 2026.06.09. Check the vendor advisory for mitigations.
References
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