Vulnerability in Cashu Nutshell
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 v…
EPSS: 0.004 (27.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Cashu Nutshell
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Broken Link)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2025-65548?
- CVE-2025-65548 is a critical-severity vulnerability in Cashu Nutshell, classified under Improper Validation of Specified Quantity in Input. CVSS score: 9.1/10. Published 2025-12-08.
- How severe is CVE-2025-65548?
- Critical severity. CVSS v3 base score is 9.1 out of 10.