https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-03T11:55:06.851995+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-104423 CVE-2026-104423 — Zebra before 6.2.1 Denial of Service via Uncapped V6 Shielded Proof Verification 2026-10-03T11:55:07.027034+00:00

Affected: ZcashFoundation zebra

Zebra (zebrad) before 6.2.1 contains an asymmetric resource consumption vulnerability that allows unauthenticated peers to stall block verification by pushing V6 mempool transactions with invalid Halo2 proofs. Attackers can flood the shared unprioritized Halo2 verification queue with zero-fee transactions carrying zero-filled Orchard and Ironwood proofs, causing nodes to fall behind the chain tip.