In response to another question, I was told that the Talmud was considered canonical by Orthodox Jews. I have heard it called authoritative, but never canonical before. The cursory sources I checked did not include the Talmud as a part of the canon, though they clearly recognized it as authoritative as well.
I meant canonical as in authoritative/indisputable as a matter of law; not that it is part of the Biblical canon. That is why I wrote "places canonical value" and not something like "considers part of the canon." See this blog post for further elaboration.