{"id":"CVE-2017-12842","details":"Bitcoin Core before 0.14 allows an attacker to create an ostensibly valid SPV proof for a payment to a victim who uses an SPV wallet, even if that payment did not actually occur. Completing the attack would cost more than a million dollars, and is relevant mainly only in situations where an autonomous system relies solely on an SPV proof for transactions of a greater dollar amount.","modified":"2026-04-10T03:56:53.255181Z","published":"2020-03-16T20:15:12.423Z","references":[{"type":"ADVISORY","url":"https://bitslog.wordpress.com/2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-design/"},{"type":"ADVISORY","url":"https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures"},{"type":"ADVISORY","url":"https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2019-February/016697.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bitcoin/bitcoin","events":[{"introduced":"0"},{"fixed":"43a987c1cbcd04b9c59052606c3c31c56abc826e"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"0.14.0"}]}}],"versions":["noversion","v0.14.0rc1","v0.14.0rc2","v0.14.0rc3","v0.3.1","v0.3.11_notexact","v0.3.1rc1","v0.3.2","v0.3.20","v0.3.20.01_closest","v0.3.20.2_closest","v0.3.21","v0.3.21rc","v0.3.22","v0.3.22rc1","v0.3.22rc2","v0.3.22rc3","v0.3.22rc4","v0.3.23","v0.3.23rc1","v0.3.24","v0.3.24rc1","v0.3.24rc2","v0.3.24rc3","v0.3.3","v0.3.6","v0.3.7","v0.3.8","v0.4.0","v0.4.00rc1","v0.4.00rc2","v0.5.0","v0.5.0rc1","v0.5.0rc2","v0.5.0rc4","v0.5.0rc5","v0.5.0rc6","v0.5.0rc7","v0.5.1","v0.5.1rc1","v0.5.1rc2","v0.6.0","v0.6.0rc1","v0.6.0rc2","v0.6.0rc3","v0.6.0rc4","v0.6.0rc5","v0.6.0rc6","v0.6.1","v0.6.1rc1","v0.6.1rc2","v0.7.0","v0.7.0rc1","v0.7.0rc2","v0.7.0rc3","v0.7.1","v0.7.1rc1","v0.8.0","v0.8.0rc1","v0.8.2","v0.8.2rc1","v0.8.2rc2","v0.8.2rc3","v0.9.0rc1","v0.9.0rc2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12842.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}