https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-04T11:49:02.333460+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-104420 CVE-2026-104420 — Zebra before 6.3.0 Peer Misbehavior Ban Bypass via Gossiped Blocks 2026-10-04T11:49:02.335462+00:00

Affected: ZcashFoundation zebra

Zebra before 6.3.0 contains a protection mechanism failure that allows unauthenticated peers to evade misbehavior scoring by supplying invalid gossiped blocks. The inbound cleanup step wrongly downcasts RouterError to VerifyBlockError and discards the score, so attackers can repeatedly force block download and Equihash verification without being banned.