Most recent entries from all https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sun, 04 Oct 2026 19:23:51 +0000 CVE-2026-104420 — Zebra before 6.3.0 Peer Misbehavior Ban Bypass via Gossiped Blocks https://vulnerability.circl.lu/vuln/cve-2026-104420 <p><strong>Affected:</strong> ZcashFoundation zebra</p> <p>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.</p> <p><strong>Affected:</strong> ZcashFoundation zebra</p> <p>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.</p> https://vulnerability.circl.lu/vuln/cve-2026-104420