{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-47674", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-19T21:10:38.798Z", "datePublished": "2026-05-28T15:29:08.525Z", "dateUpdated": "2026-06-02T18:15:02.284Z"}, "containers": {"cna": {"title": "Hono: IP Restriction bypasses static deny rules for non-canonical IPv6", "problemTypes": [{"descriptions": [{"cweId": "CWE-185", "lang": "en", "description": "CWE-185: Incorrect Regular Expression", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1289", "lang": "en", "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5"}], "affected": [{"vendor": "honojs", "product": "hono", "versions": [{"version": "< 4.12.21", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-28T15:29:08.525Z"}, "descriptions": [{"lang": "en", "value": "Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule \u2014 such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses \u2014 do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21."}], "source": {"advisory": "GHSA-xrhx-7g5j-rcj5", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-02T18:14:51.645201Z", "id": "CVE-2026-47674", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-02T18:15:02.284Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-47674", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-02T18:14:51.645201Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-02T18:14:55.067Z"}}], "cna": {"title": "Hono: IP Restriction bypasses static deny rules for non-canonical IPv6", "source": {"advisory": "GHSA-xrhx-7g5j-rcj5", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "honojs", "product": "hono", "versions": [{"status": "affected", "version": "< 4.12.21"}]}], "references": [{"url": "https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5", "name": "https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule \u2014 such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses \u2014 do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-185", "description": "CWE-185: Incorrect Regular Expression"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1289", "description": "CWE-1289: Improper Validation of Unsafe Equivalence in Input"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-28T15:29:08.525Z"}}}, "cveMetadata": {"cveId": "CVE-2026-47674", "state": "PUBLISHED", "dateUpdated": "2026-06-02T18:15:02.284Z", "dateReserved": "2026-05-19T21:10:38.798Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-05-28T15:29:08.525Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:hono:hono:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "797B2A25-4B24-46A9-8EF4-35F6F1214A7C", "versionEndExcluding": "4.12.21", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule \u2014 such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses \u2014 do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21."}], "id": "CVE-2026-47674", "lastModified": "2026-05-29T16:57:58.913", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-28T17:16:32.383", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-185"}, {"lang": "en", "value": "CWE-1289"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.12.21)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "matching", "scores": [{"score": 90.0, "source": "matching"}]}, "original": {"product": "hono", "source": "cna", "vendor": "honojs"}, "product": "hono", "vendor": "hono"}], "created": "2026-05-28T19:30:16.614920+00:00", "updated": "2026-05-30T21:00:12.229162+00:00", "vendors": ["hono", "hono$PRODUCT$hono"]}