Steps to recreate:

install psycogp2 and postgresql 13 client libraries

ensure libpq <= 13.11

ensure openssl >= 3.2.x

start a client connection to a running postgres server (ssl enabled)

various errors on client side logs:
free(): invalid pointer
free(): invalid size
double free or corruption (out)

Seems there is a known bug between older libpq and openssl 3.2.0

libpq >= 13.12 seems to have the patch to address it

I tested libpq 13.14 (a one-off build, not part of stream 9 yet) with openssl 3.2.0 and it worked for us (no errors)

links:

https://github.com/conan-io/conan-center-index/pull/22615
https://github.com/Homebrew/homebrew-core/issues/155651