We are running stunnel and noticed an issue with what ended up being an issue creating a new thread due to running out of memory at 2gb - error (8) on create_client

Are there any known issues with 4.53 around memory usage?

We only terminate 2 ports against the installation 443 on 2 different interfaces / IP addresses and we ran into this issue with just under 5000 total connections

We are not doing ECDH , but are using a 1024-bit param file