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2 vulnerabilities found for zebra-consensus by zfnd

CVE-2026-34377 (GCVE-0-2026-34377)

Vulnerability from nvd – Published: 2026-03-31 14:05 – Updated: 2026-03-31 17:18
VLAI?
Title
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
Summary
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, 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 would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1.
Severity ?
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
ZcashFoundation zebra Affected: < 4.3.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-34377 (GCVE-0-2026-34377)

Vulnerability from cvelistv5 – Published: 2026-03-31 14:05 – Updated: 2026-03-31 17:18
VLAI?
Title
Zebra has a Consensus Failure due to Improper Verification of V5 Transactions
Summary
ZEBRA is a Zcash node written entirely in Rust. Prior to zebrad version 4.3.0 and zebra-consensus version 5.0.1, a logic error in Zebra's transaction verification cache could allow a malicious miner to induce a consensus split. By matching a valid transaction's txid while providing invalid authorization data, 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 would not allow invalid transactions to be accepted but could result in a consensus split between vulnerable Zebra nodes and invulnerable Zebra and Zcashd nodes. This issue has been patched in zebrad version 4.3.0 and zebra-consensus version 5.0.1.
Severity ?
8.4 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version
ZcashFoundation zebra Affected: < 4.3.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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