CVE-2026-34377

ZEBRA (Zcash node, Zebra) contains a consensus-failure vulnerability in its handling of V5 transactions. Before zebrad v4.3.0 and zebra-consensus v5.0.1, a logic error in the transaction verification cache could let a malicious miner craft a block with an invalid authorization data set but a matc...

CVE-2026-40880

The CVE-2026-40880 issue affects Zebra (Zcash node) prior to Zebrad 4.3.1 and zebra-consensus 5.0.2. A logic error in Zebra’s transaction verification cache allowed a malicious miner to exploit height-dependent validity (e.g., an expiry height or upgrade) by submitting a transaction valid at heig...