CVE-2026-104435

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Source
https://cve.org/CVERecord?id=CVE-2026-104435
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104435.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-104435
Aliases
Published
2026-10-02T11:38:12Z
Modified
2026-10-04T02:30:32Z
Severity
  • 8.3 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Zebra 4.4.0 Consensus Divergence via V5 SIGHASH_SINGLE Without Output
Details

Zebra zebrad 4.4.0 and zebra-script 6.0.0 fail to enforce a ZIP-244 consensus rule, accepting V5 transparent inputs signed with SIGHASH_SINGLE that lack a corresponding output. Attackers can broadcast crafted V5 transactions with more inputs than outputs that Zebra accepts but zcashd rejects, causing a network consensus split.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-347"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104435.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "6.0.0"
                },
                {
                    "fixed":  "6.0.1"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/zcashfoundation/zebra

Affected ranges

Type
GIT
Repo
https://github.com/zcashfoundation/zebra
Events
Introduced
589d64b9b7ea6ab4c32ecab41ba6b74f26907940
Fixed
1ec1078e242c295bc9e80bc2087a663444772fa3
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "4.4.0"
        },
        {
            "fixed":  "4.4.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v4.*
v4.4.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104435.json"