PSA: “Inscriptions” are exploiting a vulnerability in #Bitcoin Core to spam the blockchain. Bitcoin Core has, since 2013, allowed users to set a limit on the size of extra data in transactions they relay or mine (`-datacarriersize`). By obfuscating their data as program code, Inscriptions bypass this limit.
This bug was recently fixed in Bitcoin Knots v25.1. It took longer than usual due to my workflow being severely disrupted at the end of last year (v24 was skipped entirely).
Bitcoin Core is still vulnerable in the upcoming v26 release. I can only hope it will finally get fixed before v27 next year.
Luke Dashjr
npub1lh…aa9nk
2023-12-06 01:08:47
Author Public Key
npub1lh273a4wpkup00stw8dzqjvvrqrfdrv2v3v4t8pynuezlfe5vjnsnaa9nkPublished at
2023-12-06 01:08:47Event JSON
{
"id": "7292f4b5dfdcbaa8b91384750e24e6089af4708e0f3798b0955dee367fe173bc",
"pubkey": "fdd5e8f6ae0db817be0b71da20498c1806968d8a6459559c249f322fa73464a7",
"created_at": 1701824927,
"kind": 1,
"tags": [
[
"t",
"Bitcoin"
],
[
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],
"content": "PSA: “Inscriptions” are exploiting a vulnerability in #Bitcoin Core to spam the blockchain. Bitcoin Core has, since 2013, allowed users to set a limit on the size of extra data in transactions they relay or mine (`-datacarriersize`). By obfuscating their data as program code, Inscriptions bypass this limit.\n\nThis bug was recently fixed in Bitcoin Knots v25.1. It took longer than usual due to my workflow being severely disrupted at the end of last year (v24 was skipped entirely).\n\nBitcoin Core is still vulnerable in the upcoming v26 release. I can only hope it will finally get fixed before v27 next year.",
"sig": "058a22104560cc9b76e13b37c8d84cd898a359e72d7fae60659159ca0a63540421bf5d78bec31f25ce25fa033c3734a2981130dc8f1268eafb468e7c06aaf618"
}