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CVE-2026-44498

ZEBRA: Block Validator Undercounts Coinbase and P2SH Sigops PUBLISHED

Description (CNA)

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 (MAX_BLOCK_SIGOPS), allowing it to accept blocks that zcashd rejects with bad-blk-sigops. A miner who produces such a block can split the network: Zebra nodes follow the offending chain while zcashd nodes do not. This issue has been patched in version 4.4.0.

Affected (CNA)

Vendor / productVersions
ZcashFoundation / zebraaffected < 4.4.0

CWE

CWE-682

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.