Bitcoin Optech newsletter #404 is here:

- announces the responsible disclosure of a vulnerability that could allow an attacker with sufficient proof-of-work to crash Bitcoin Core nodes
- describes a draft BIP proposal for sharing the UTXO set over the P2P network
- Optech Newsletter #405 Podcast
https://bitcoinops.org/en/newsletters/2026/05/15/

Niklas Gögge posted to the Bitcoin-Dev mailing list disclosing CVE-2024-52911, a vulnerability affecting versions of Bitcoin Core after version 0.14.0 and before 29.0...
https://bitcoinops.org/en/newsletters/2026/05/15/#bitcoin-core-script-interpreter-remote-crash-disclosure

Fabian Jahr posted to the Bitcoin-Dev mailing list about a draft BIP for sharing the UTXO set over the P2P layer...
https://bitcoinops.org/en/newsletters/2026/05/15/#bip-proposal-for-utxo-set-sharing-over-p2p-network

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 16:30 UTC.