{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-106072","assignerOrgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","state":"PUBLISHED","assignerShortName":"hackerone","dateReserved":"2026-10-06T15:00:00.655Z","datePublished":"2026-10-23T16:15:05.783Z","dateUpdated":"2026-11-02T15:39:59.537Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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**."}],"affected":[{"defaultStatus":"unaffected","vendor":"nodejs","product":"node","versions":[{"version":"22.23.3","status":"affected","lessThanOrEqual":"22.23.3","versionType":"semver"},{"version":"24.22.0","status":"affected","lessThanOrEqual":"24.22.0","versionType":"semver"},{"version":"26.12.0","status":"affected","lessThanOrEqual":"26.12.0","versionType":"semver"}]}],"references":[{"url":"https://nodejs.org/en/blog/vulnerability/october-2026-security-releases"}],"metrics":[{"cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L","baseScore":6.7,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","cweId":"CWE-295","description":"CWE-295 Improper Certificate Validation"}]}],"providerMetadata":{"orgId":"36234546-b8fa-4601-9d6f-f4e334aa8ea1","shortName":"hackerone","dateUpdated":"2026-10-23T16:15:05.783Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-11-02T15:39:13.874920Z","id":"CVE-2026-106072","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-11-02T15:39:59.537Z"}}]}}