CVE-2026-123554 | BDVDB-2026-401911 Detail

Description#

Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check because Transaction::coinbase_spend_restriction() rebuilds the transaction's output list once per spent outpoint. Any connected peer can repeatedly send unsigned transactions with many transparent inputs and outputs, which are rejected without a misbehavior score, to pin verification threads.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-11-08Record published in the CVE List.