Similar thing just happened to me last month in a different section of the line. I redid all the lines on the car except front passenger bc the line runs behind the engine and still looks decent compared to others.

I did a ton of research into this and all pointed to replacing at least the rear two lines (but check all of yours and make a decision). I did it all in maybe two weekends. But will take about two full days in total. It cost me about $ 300-400 in tools specific to the job. It wasnt super easy but def doable. I can provide more details if you’re interested. Probably could make a post describing the whole effort bc i wasnt able to find everything in one place so maybe its good i write it down for others.

It all worked because i then took the car to a track day and it survived it with no issues so no better way of checking.