Critical
yt-dlp — security advisory
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.
- Products
- yt-dlp
- Affected versions
- 2021.12.01-1, 2021.12.27-1, 2022.01.21-1, 2022.02.04-1, 2022.03.08.1-1, 2022.04.08-1, 2023.07.06-1, 2023.10.13-1ubuntu1, 2023.11.16-1, 2023.12.30-1ubuntu1, 2024.03.10-1, 2024.04.09-1, 2025.03.27-1, 2025.04.30-1, 2025.05.22-1, 2025.06.09-1, 2025.06.25-1, 2025.06.30-1, 2025.07.21-1, 2025.08.11-1, 2025.08.20-1, 2025.08.22-1, 2025.08.27-1, 2025.09.05-1, 2025.09.23-1, 2025.10.22-1, 2025.11.12-1, 2025.12.08-1, 2026.01.31-1, 2026.03.17-1, 2026.06.09-1, 2026.07.04-1, 2026.08.19-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-50574
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:25 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-50574
yt-dlp
Fixed versions: Not specified
yt-dlp
Fixed versions: Not specified
yt-dlp
Fixed versions: Not specified
yt-dlp
Fixed versions: Not specified
yt-dlp
Fixed versions: Not specified
Complete source record
{
"id": "c434217380062ac47dd4c60f406aeab8a1790d1c1471e18b1a315c08fb83a3cd",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-50574",
"method": "structured",
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"summary": "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.",
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