{"id":"CVE-2026-40880","revision":"cc41b725847043e0ab1aa1f40314895f","records":[{"revision":"cc41b725847043e0ab1aa1f40314895f","observedAt":"2026-10-27T10:10:07.342+00:00","statement":{"source":"nvd","id":"CVE-2026-40880","aliases":[],"title":"ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and zebra-consensus version 5.0.2, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By carefully…","description":"ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and zebra-consensus version 5.0.2, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By carefully submitting a transaction that is valid for height H+1 but invalid for H+2 and then mining that transaction in a block at height H+2, a miner could cause vulnerable Zebra nodes to accept an invalid block, leading to a consensus split from the rest of the Zcash network. This vulnerability is fixed in zebrad version 4.3.1 and zebra-consensus version 5.0.2.","state":0,"publishedAt":"2026-04-21T20:17:01.687+00:00","modifiedAt":"2026-10-26T21:10:00.17+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.2,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":8.1,"severity":"HIGH"}],"references":["https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-xvj8-ph7x-65gf"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-40880","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-1025"],"productCriteria":["cpe:2.3:a:zfnd:zebra-consensus:*:*:*:*:*:rust:*:*","cpe:2.3:a:zfnd:zebrad:*:*:*:*:*:rust:*:*"],"sourceDates":{"published":"2026-04-21T20:17:01.687","lastModified":"2026-10-26T21:10:00.170"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-40880","identifiers":["CVE-2026-40880"]},"retained":false,"historicalAffected":[]}],"coverage":[]}