Releases prior to 3.0.2 are vulnerable to a Server-Side Request Forgery vulnerability that allows an attacker to send a request to an internal hostname.
3.0.2 contains a fix for this vulnerability. (The 1.x and 2.x releases are not maintained anymore.)
Part of the fix requires applying a patch to youtube-dl to prevent it from following HTTP redirects. If you are using the version of youtube-dl bundled with 3.0.2, it is already patched. However, if you are using your own unpatched version of youtube-dl you might still be vulnerable.
{ "nvd_published_at": "2022-02-28T10:15:00Z", "cwe_ids": [ "CWE-918" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2022-03-01T22:01:30Z" }