Leeds have been looking to strengthen their front-row options after Phil Swainston ruled out for four months.
And 21-year-old Palma-Newport, who has made nine Premiership appearances for Bath, will go straight into the Carnegie squad for Sunday's Championship clash at table-topping Bristol.
Leeds coach Diccon Edwards said: "We are very grateful to Bath for allowing Kane to join us on loan. He will benefit from playing in the Championship with us.
"Initially he will join us for a month but we will review that with Bath after the first month. His opportunities at Bath are limited at present but credit must go to them for giving their young players the chance to develop their skills in a tough competition on loan.
"He is looking forward to joining up with our squad and a trip back down to the south west this weekend to face Bristol."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
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Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
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The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
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The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.
