As of September 2, 2019, Overthecap is listing the Packers with $9.912M in cap space for 2019. Click here to see for yourself. Sportrac suggests that the Packers have $9.951M in cap space. When I input the data for both sites into a spreadsheet and made a few minor adjustments, I calculated the Packers' cap space at $9.997M.
Some good news is that neither site is using the Rule of 51 to reach its result. The layout of both sites looks like they are counting just the top 51 contracts but the numbers in my spreadsheet clearly indicate that both sites counted all 53 contracts, 10 practice squad contracts, dead money, plus IR and PUP obligations.