CVE-2026-44498 ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops

ZEBRA is a Zcash node written entirely in Rust. Prior to version 4.4.0, Zebra's block validator undercounts transparent signature operations against the 20000-sigop block limit MAXBLOCKSIGOPS, allowing it to accept blocks that zcashd rejects with bad-blk-sigops. A miner who produces such a block...

Use of Weak Hash

Overview Affected versions of this package are vulnerable to Use of Weak Hash in the P2SH check during deposit reveal. An attacker can cause protocol insolvency by crafting a transaction that embeds a valid P2SH inside a P2PKH output script, which is incorrectly treated as a valid P2SH output by...