{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-109364", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-12T14:21:32.595Z", "datePublished": "2026-10-12T16:05:42.223Z", "dateUpdated": "2026-10-12T16:05:42.223Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-12T16:05:42.223Z"}, "datePublic": "2026-09-28T00:00:00.000Z", "title": "Zebra 2.3.0 before 6.4.0 Peer Ban Bypass via Exact-IP Keying", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Protection Mechanism Failure", "cweId": "CWE-693", "type": "CWE"}]}], "affected": [{"vendor": "ZcashFoundation", "product": "zebra", "defaultStatus": "unaffected", "packageURL": "pkg:cargo/zebrad", "versions": [{"version": "2.3.0", "status": "affected", "versionType": "semver", "lessThan": "6.4.0"}, {"version": "6.4.0", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:zfnd:zebra:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.3.0", "versionEndExcluding": "6.4.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.9, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/ZcashFoundation/zebra/security/advisories/GHSA-jhpp-8h75-7pv5", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-jhpp-8h75-7pv5)"}, {"name": "VulnCheck Advisory: Zebra 2.3.0 before 6.4.0 Peer Ban Bypass via Exact-IP Keying", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/zebra-2.3.0-before-6.4.0-peer-ban-bypass-via-exact-ip-keying"}], "credits": [{"lang": "en", "value": "conradoplg", "type": "reporter"}, {"lang": "en", "value": "mpguerra", "type": "coordinator"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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