Brake fluid can damage power steering components if it comes into contact with them. Brake fluid is a hygroscopic fluid, which means that it absorbs water from the air. This can cause the fluid to become contaminated and break down, leading to damage to the power steering pump, hoses, and other components. In addition, brake fluid can cause rubber seals and gaskets to swell and deteriorate, which can lead to leaks.
For these reasons, it is important to keep brake fluid away from power steering components. If brake fluid does come into contact with power steering components, it is important to flush the system and replace the contaminated fluid as soon as possible.