{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "zebrad \u003c 4.3.1"
              },
              {
                "last_affected": "zebrad \u003c 4.3.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "aba329d6dca884f6d42bb4d36bda0010a071c2fc"
            },
            {
              "last_affected": "aba329d6dca884f6d42bb4d36bda0010a071c2fc"
            }
          ],
          "repo": "https://github.com/zcashfoundation/zebra",
          "type": "GIT"
        }
      ],
      "versions": [
        "zebrad \u003c 4.3.1"
      ]
    }
  ],
  "aliases": [
    "GHSA-8m29-fpq5-89jj"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-573"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41583.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "zebra-script \u003c 5.0.2"
          },
          {
            "last_affected": "zebra-script \u003c 5.0.2"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.1 and prior to zebra-script version 5.0.2, after a refactoring, Zebra failed to validate a consensus rule that restricted the possible values of sighash hash types for V5 transactions which were enabled in the NU5 network upgrade. Zebra nodes could thus accept and eventually mine a block that would be considered invalid by zcashd nodes, creating a consensus split between Zebra and zcashd nodes. In a similar vein, for V4 transactions, Zebra mistakenly used the \"canonical\" hash type when computing the sighash while zcashd (correctly per the spec) uses the raw value, which could also crate a consensus split. This issue has been patched in zebrad version 4.3.1 and zebra-script version 5.0.2.",
  "id": "CVE-2026-41583",
  "modified": "2026-07-15T01:49:04.789222165Z",
  "published": "2026-05-08T14:55:50.120Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41583.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-8m29-fpq5-89jj"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41583"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "ZEBRA: Consensus Divergence in Transparent Sighash Hash-Type Handling"
}