{"id":"CVE-2026-109364","revision":null,"records":[{"revision":"50872d815ee74b43b8cccdd8ade047ad","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109364","aliases":[],"title":"Zebra 2.3.0 before 6.4.0 Peer Ban Bypass via Exact-IP Keying","description":"Zebra 2.3.0 before 6.4.0 contains a protection mechanism failure that allows unauthenticated peers to evade bans because bans and misbehavior scores are keyed on exact IP addresses. Attackers can reconnect from fresh IPv6 addresses in their /64 allocation or flush the 20,000-entry FIFO ban list to restore access for banned peers.","state":0,"publishedAt":"2026-10-12T16:05:42.223+00:00","modifiedAt":"2026-10-13T16:53:12.902+00:00","affected":[{"ecosystem":"Vendor product","name":"zebra","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ZcashFoundation\",\n                    \"product\": \"zebra\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:cargo/zebrad\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.3.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"6.4.0\"\n                        },\n                        {\n                            \"version\": \"6.4.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-jhpp-8h75-7pv5","https://www.vulncheck.com/advisories/zebra-2.3.0-before-6.4.0-peer-ban-bypass-via-exact-ip-keying"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109364","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109364","identifiers":["CVE-2026-109364"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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