From f2332f18e66fc5255d11a2762bfaff02f8221251 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sergey=20M=E2=80=A4?= <dstftw@gmail.com>
Date: Fri, 27 Oct 2017 22:26:43 +0700
Subject: [PATCH] [youtube] Restrict embed regex (#14600)

---
 youtube_dl/extractor/youtube.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 5aef555fb..9943dddc1 100644
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -1391,7 +1391,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             )
             (["\'])
                 (?P<url>(?:https?:)?//(?:www\.)?youtube(?:-nocookie)?\.com/
-                (?:embed|v|p)/.+?)
+                (?:embed|v|p)/[0-9A-Za-z_-]{11}.*?)
             \1''', webpage)]
 
         # lazyYT YouTube embed