CVE-2025-65548

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-65548
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-08 19:15:50 UTC
Updated2026-10-18 14:10:00 UTC
DescriptionNUT-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.

Risk And Classification

Primary CVSS: v3.1 9.1 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Problem Types: CWE-1284 | n/a | CWE-1284 CWE-1284 Improper Validation of Specified Quantity in Input

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cashu Nutshell All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
preimage007.github.io [email protected] preimage007.github.io Product
bitcointalk.org/index.php 134c704f-9b21-4f2e-91b3-4a467353bcc0 bitcointalk.org Exploit, Issue Tracking
github.com/cashubtc/nuts/blob/main/14.md [email protected] github.com Exploit, Third Party Advisory
github.com/cashubtc/nuts/blob/main/07.md [email protected] github.com Exploit, Third Party Advisory
delvingbitcoin.org/t/public-disclosure-denial-of-service-using-htlc-in-cashu/2090 [email protected] delvingbitcoin.org Broken Link
github.com/jamesob/delving-bitcoin-archive/blob/master/archive/rendered-... 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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