{"id":"CVE-2026-117346","title":"Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit","summary":"Bitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"adp","ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-11-04T01:58:08.943248Z"},"published":"2026-10-30","updated":"2026-11-04","sourceUpdated":"2026-11-04T01:59:27.387Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-117346","references":[{"url":"http://bitcoin.com"},{"url":"https://bitcoincore.org/en/2026/10/28/disclose-undo-overflow/"}],"tags":["cve.org"],"epss":0.00488,"epssPercentile":0.42242,"ingestedAt":"2026-11-05T20:33:06.660Z","slug":"CVE-2026-117346","body":"## Overview\n\nBitcoin Core through 31.1 is vulnerable to Denial of Service via undo files having no size limit\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}