The Bitcoin Core project has disclosed two security bugs that could affect the stability of the Bitcoin network. The first vulnerability, listed as being of higher severity, could cause the network to crash through a spam attack. The second vulnerability, which is of lower severity, is related to Miniupnp, a universal plug-and-play library used by Bitcoin Core and could result in insufficient memory for nodes. Both vulnerabilities were fixed in Bitcoin Core v22.0, released in 2021, but were not disclosed to the public until recently.