[vimeo] Restrict iframe embed regex (closes #14600)

youtube_dl/extractor/vimeo.py

@@ -412,7 +412,7 @@ class VimeoIE(VimeoBaseInfoExtractor):
         urls = []
         # Look for embedded (iframe) Vimeo player
         for mobj in re.finditer(
-                r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//player\.vimeo\.com/video/.+?)\1',
+                r'<iframe[^>]+?src=(["\'])(?P<url>(?:https?:)?//player\.vimeo\.com/video/\d+.*?)\1',
                 webpage):
             urls.append(VimeoIE._smuggle_referrer(unescapeHTML(mobj.group('url')), url))
         PLAIN_EMBED_RE = (