I am still waiting for Jason to publish the addendum that the vault is just fine, it’s only the entrance that is seeing water intrusion. The vault itself is still at -18°C, and is more or less a separate system. If anything, the air pocket traps and other safeguards against water flooding the entry have yet to be tested.
“Flooding is probably not quite the right word to use in this case,” says Cary Fowler, who helped create the seed vault. “In my experience, there’s been water intrusion at the front of the tunnel every single year.”
Source: Turns out the Svalbard seed vault is probably fine | Popular Science
