yt-dlp up to 2026.06.8 File Download information disclosure

Summaryinfo

A vulnerability has been found in yt-dlp up to 2026.06.8 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component File Download Handler. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2026-50019. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in yt-dlp up to 2026.06.8. It has been rated as problematic. This issue affects an unknown part of the component File Download Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

yt-dlp is a command-line audio/video downloader. From 2023.09.24 until 2026.06.09, if curl is used as an external downloader for yt-dlp, cookies may be leaked to an unintended host upon HTTP redirect or when the host for download fragments differs from their parent manifest's. At the file download stage, the cookies are passed by yt-dlp to the file downloader via --cookie. However, unless these are loaded from a file, this operation does not activate the cookie engine. As a result, curl will send cookies with requests to domains or paths for which the cookies are not scoped. This vulnerability is fixed in 2026.06.09.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-50019 since 06/03/2026. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 322360 (Fedora 43 : yt-dlp (2026-03f87de373)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2026.06.09 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (322360). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Data Loss Prevention Software

Name

• yt-dlp

Version

• 2026.06.0
• 2026.06.1
• 2026.06.2
• 2026.06.3
• 2026.06.4
• 2026.06.5
• 2026.06.6
• 2026.06.7
• 2026.06.8

Website

• Product: https://github.com/yt-dlp/yt-dlp/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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