Cashu NUTs 安全漏洞

Cashu NUTs is a Cashu protocol specification open-sourced by Cashu. A security vulnerability exists in versions of Cashu NUTs prior to 0.18.0, which stems from an unvalidated preimage size that could lead to an attacker populating a mint's database and disk...

CVE-2025-65548

NUT-14 allows cashu tokens to be created with a preimage hash. However, nutshell cashubtc/nuts before 0.18.0 do not validate the size of preimage when the token is spent. The preimage is stored by the mint and attacker can exploit this vulnerability to fill the mint's db nd disk with arbitrary da...