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CVE-2026-44498
Published: May 8, 2026
Modified: May 14, 2026
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
ZcashFoundation | zebra | affected < 4.4.0 |
Weaknesses (CWE)
References
https://github.com/ZcashFoundation/zebra/releases/tag/v4.4.0
x_refsource_MISC
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