What is CVE-2026-50019?

CVE-2026-50019 is a medium-severity vulnerability in Yt-Dlp, classified under Information Disclosure. CVSS score: 6.1/10. Published 2026-06-23.

How severe is CVE-2026-50019?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Information disclosure in Yt-Dlp

CVE-2026-50019

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.

Vulnerability class: Information Disclosure

EPSS: 0.003 (25.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Yt-dlp — versions >= 2023.09.24, < 2026.06.09
Yt-dlp_project Yt-dlp

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-50019?: CVE-2026-50019 is a medium-severity vulnerability in Yt-Dlp, classified under Information Disclosure. CVSS score: 6.1/10. Published 2026-06-23.
How severe is CVE-2026-50019?: Medium severity. CVSS v3 base score is 6.1 out of 10.