Firstly, I AM NOT the person to ask about SF related things. But since it’s almost been 24 hours with no comment, let me see what I can do.
Like most command grabs, they only work when the target is on the ground. Unless it’s some weird command air grab, but I don’t think Zangief has any of those. So if you jump cancle just as he’s going in to throw, he’ll miss and be open to retaliation. This is an old video, but it looks like this weird dash also makes Karin impervious to Zangief’s hug.
(5 second mark)
I can’t really help with moves involving super armor, as I don’t know how super armor works in SF5 (this is SF5 we’re discussing, right?) If the armor lasts for a few hits, you could try a multi-hit attack. If it’s a full super armor attack, then you could try blocking and retaliating.
You’re in silver now, you’re going to have to learn how other characters work if you want to be successful. Try looking at some Zangief match ups and see how other people deal with him. They don’t need to be fighting Karin, the goal is just to see when he’s vulnerable when performing said moves.