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CVE-2026-34377

Zebra has a Consensus Failure due to Improper Verification of V5 Transactions PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
ZcashFoundation / zebraaffected < 4.3.0
ZcashFoundation / zebra-consensusaffected < 5.0.1

CWE

CWE-347

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.