There is a MEDIUM severity vulnerability affecting CPython. The urllib.parse.urlsplit() and urlparse() functions improperly validated bracketed hosts (`[]`), allowing hosts that weren't IPv6 or IPvFuture. This behavior was not conformant to RFC 3986 and potentially enabled SSRF if a URL is processed by more than one URL parser. ---- Apparently it was fixed in 3.11.4, but not considered a vulnerability then, and never backported to earlier versions.
My vote would be noglsa.