{"id":"CVE-2026-106072","revision":null,"records":[{"revision":"8163bca81f854048924d42fb2fd961e7","observedAt":"2026-10-23T17:48:20.538+00:00","statement":{"source":"cve-program","id":"CVE-2026-106072","aliases":[],"title":"A flaw in Node.js TLS hostname verification allows a certificate with only a DNS SAN to authenticate an IP endpoint when the client connects using a non-canonical IPv4 spelling, such as `0177.0.0.1`, `0x7f.0.0.1`, `2130706433` or `127.1`.","description":"A flaw in Node.js TLS hostname verification allows a certificate with only a DNS SAN to authenticate an IP endpoint when the client connects using a non-canonical IPv4 spelling, such as `0177.0.0.1`, `0x7f.0.0.1`, `2130706433` or `127.1`.\n\n`tls.checkServerIdentity()` did not classify these hosts as IP addresses, but normalized them to their canonical form and matched the result against the certificate DNS names. A certificate containing `DNS:127.0.0.1` and no `IP Address:127.0.0.1` SAN was therefore accepted, while the same certificate is correctly rejected for `127.0.0.1`. Exploitation requires a certificate with a numeric DNS SAN issued by a CA trusted by the client, and a platform resolver that accepts these spellings, such as glibc.\n\nThis vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.","state":0,"publishedAt":"2026-10-23T16:15:05.783+00:00","modifiedAt":"2026-10-23T16:15:05.783+00:00","affected":[{"ecosystem":"Vendor product","name":"node","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"vendor\": \"nodejs\",\n                    \"product\": \"node\",\n                    \"versions\": [\n                        {\n                            \"version\": \"22.23.3\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"22.23.3\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"24.22.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"24.22.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"26.12.0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"26.12.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L","score":6.7,"severity":"MEDIUM"}],"references":["https://nodejs.org/en/blog/vulnerability/october-2026-security-releases"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106072","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106072","identifiers":["CVE-2026-106072"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-10-27T07:23:11.0512190+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-27T07:23:11.051219+00:00","lastSuccessAt":"2026-10-27T07:23:11.2090096+00:00","error":null,"lastVerifiedAt":"2026-10-27T07:23:11.20901+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-24522516f1614d7cbe7ed37bb944c6d3","complete":false,"records":13416,"lastAttemptAt":"2026-10-27T07:23:39.3554127+00:00","lastSuccessAt":"2026-10-27T07:23:39.351+00:00","error":null,"lastVerifiedAt":"2026-10-27T07:23:39.351+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13077,"expectedIdentifiers":13477},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-c3121b113ecd88f1c92ccfa0ec9757ddc8386e4c12afd2597450b815744f800a","complete":true,"records":9779,"lastAttemptAt":"2026-10-27T07:23:10.9398423+00:00","lastSuccessAt":"2026-10-26T15:37:14.3083004+00:00","error":null,"lastVerifiedAt":"2026-10-27T07:23:10.9398423+00:00","snapshotPublishedAt":"2026-10-26T14:48:41+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-bad5d31e7f6a5e3d338e11d8789069b63620a403f927730769688b42f768e4f6","complete":true,"records":1965,"lastAttemptAt":"2026-10-27T07:23:10.3639359+00:00","lastSuccessAt":"2026-10-26T16:35:43.1460623+00:00","error":null,"lastVerifiedAt":"2026-10-27T07:23:10.3639359+00:00","snapshotPublishedAt":"2026-10-26T16:18:29+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-a393d8fe0ae8408f3e4cab413b76047090c8e4a3c0a186c79edf33c9a3d3af95","complete":true,"records":2995,"lastAttemptAt":"2026-10-27T07:23:10.9522575+00:00","lastSuccessAt":"2026-10-26T14:35:47.9640893+00:00","error":null,"lastVerifiedAt":"2026-10-27T07:23:10.9522575+00:00","snapshotPublishedAt":"2026-10-26T14:18:55+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-2c2579bb03487537529e2b647fd2d9950cfc0fec1a9832dba33e322b8dcbe369","complete":true,"records":230812,"lastAttemptAt":"2026-10-27T07:23:10.8341194+00:00","lastSuccessAt":"2026-10-26T21:37:26.5810298+00:00","error":null,"lastVerifiedAt":"2026-10-27T07:23:10.8341194+00:00","snapshotPublishedAt":"2026-10-26T21:33:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null}]}