CVE-2025-65548
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.4%
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 data.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
n/a · n/aReferences
https://bitcointalk.org/index.php?topic=5564329https://delvingbitcoin.org/t/public-disclosure-denial-of-service-using-htlc-in-cashu/2090https://github.com/cashubtc/nuts/blob/main/07.mdhttps://github.com/cashubtc/nuts/blob/main/14.mdhttps://github.com/jamesob/delving-bitcoin-archive/blob/master/archive/rendered-topics/2025-11-November/2025-11-02-public-disclosure-denial-of-service-using-htlc-in-cashu-id2090.mdhttps://preimage007.github.io/