Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASH_SINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts and templates via getblocktemplate, producing blocks zcashd rejects.
Metrics
Affected Vendors & Products
References
History
Tue, 06 Oct 2026 03:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Fri, 02 Oct 2026 13:15:00 +0000
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| First Time appeared |
Zcashfoundation
Zcashfoundation zebra |
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| Vendors & Products |
Zcashfoundation
Zcashfoundation zebra |
Fri, 02 Oct 2026 11:45:00 +0000
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| Description | Zebra before 4.4.0 contains a consensus divergence vulnerability in V5 transparent signature verification, computing a ZIP-244 digest for SIGHASH_SINGLE inputs lacking corresponding outputs instead of failing. Attackers can craft V5 transactions with fewer outputs than inputs that Zebra accepts and templates via getblocktemplate, producing blocks zcashd rejects. | |
| Title | Zebra before 4.4.0 Consensus Split via SIGHASH_SINGLE Missing-Output Handling | |
| First Time appeared |
Zfnd
Zfnd zebra |
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| Weaknesses | CWE-347 | |
| CPEs | cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Zfnd
Zfnd zebra |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-10-02T11:38:13.855Z
Updated: 2026-10-06T02:42:57.596Z
Reserved: 2026-10-02T00:50:26.604Z
Link: CVE-2026-104437
Updated: 2026-10-06T02:42:51.662Z
Status : Deferred
Published: 2026-10-02T12:17:14.357
Modified: 2026-10-06T03:17:00.670
Link: CVE-2026-104437
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