by Kastro
Paper/Archive/CVE-2026-50574

CVE-2026-50574

yt-dlp yt-dlp — yt-dlp: Arbitrary code execution via manifest downloads with aria2c

EPSS 0.5%CVSS 9.6
critical.is priorityof 100
37
CVSS 9.6 (NVD)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 40.3.403 × 208.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

ProductAffectedFixed inSource
yt-dlp< 2026.06.09–CNA

Scores by source

NVD9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
GitHub_M (CNA)8.3CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/yt-dlp/yt-dlp/security/advisories/GHSA-vx4q-3cr2-7cg2