GHSA-5872-wrc4-qh77HighCVSS 7.5
Zebra zebrad 6.4.0 before 7.0.0 performs quadratic work in the mempool coinbase-maturity check...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (5)
- https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-7jp4-mq53-4cvq
- https://nvd.nist.gov/vuln/detail/CVE-2026-123554
- https://github.com/ZcashFoundation/zebra/commit/08743d669b33a19bce2a5d54001bd468c03a196e
- https://www.vulncheck.com/advisories/zebra-zebrad-6.4.0-before-7.0.0-denial-of-service-via-mempool-coinbase-maturity-check
- https://github.com/advisories/GHSA-5872-wrc4-qh77