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CVE-2026-50574— yt-dlp: Arbitrary code execution via manifest downloads with aria2c

Quick assessment

Affected
yt-dlp yt-dlp
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

yt-dlp是yt-dlp团队的一个视频下载命令行工具。 yt-dlp 2026.06.09之前版本存在输入验证错误漏洞，该漏洞源于传递给aria2c的输入清理不足，可能导致攻击者进行任意文件写入，进而在Windows平台上立即执行任意代码，或在非Windows平台上在下次调用yt-dlp时执行任意代码。

CVSS 8.3 · High EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
yt-dlp yt-dlp < 2026.06.09 affected
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I. Basic Information for CVE-2026-50574

Vulnerability Information
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Vulnerability Title
yt-dlp: Arbitrary code execution via manifest downloads with aria2c
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
yt-dlp 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
yt-dlp是yt-dlp团队的一个视频下载命令行工具。 yt-dlp 2026.06.09之前版本存在输入验证错误漏洞，该漏洞源于传递给aria2c的输入清理不足，可能导致攻击者进行任意文件写入，进而在Windows平台上立即执行任意代码，或在非Windows平台上在下次调用yt-dlp时执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
yt-dlp yt-dlp < 2026.06.09 -

II. Public POCs for CVE-2026-50574

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 7952 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-50574

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Vendor Advisories for CVE-2026-50574 (1)

Same Patch Batch · yt-dlp · 2026-06-23 · 3 CVEs total

CVE-2026-50023 8.3 HIGH yt-dlp: Dangerous file type creation via insufficient filename sanitization (Bypass of CVE
CVE-2026-50019 6.1 MEDIUM yt-dlp: File Downloader cookie leak with curl

IV. Related Vulnerabilities

Same product: yt-dlp
Same vendor: yt-dlp
Same weakness: CWE-74

V. Comments for CVE-2026-50574

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