CVE-2026-104437 (GCVE-0-2026-104437)
Vulnerability from cvelistv5
Published
2026-10-02 11:38
Modified
2026-10-06 02:42
Severity ?
8.3 (High) - 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
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Summary
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.
References
Impacted products
Vendor Product Version
ZcashFoundation zebra Version: 0   ≤
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