Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixing
github.com/lightningnetwork/lnd/blob/master/docs/release-notes/release-notes-0.13.3.md
github.com/lightningnetwork/lnd/releases/tag/v0.13.3-beta
lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.html
lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.html
lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003264.html