{"id":"CVE-2026-105482","revision":"4281545f3e274a4186ba8a2ab5d8d20b","records":[{"revision":"4281545f3e274a4186ba8a2ab5d8d20b","observedAt":"2026-10-23T17:48:20.538+00:00","statement":{"source":"cve-program","id":"CVE-2026-105482","aliases":[],"title":"A flaw in Node.js DNS resolution allows hostnames containing a NUL byte to be silently truncated by the dns.resolve*() functions and dns.reverse(). This is an incomplete fix of CVE-2026-48930, which only covered dns.lookup() and the net/tls…","description":"A flaw in Node.js DNS resolution allows hostnames containing a NUL byte to be silently truncated by the dns.resolve*() functions and dns.reverse(). This is an incomplete fix of CVE-2026-48930, which only covered dns.lookup() and the net/tls host options.\r\n\r\nBecause the name is passed to c-ares as a C string, resolving attacker.example\\0.trusted.example queries attacker.example and returns its records without any error. Applications that validate a hostname, for example against a domain allowlist, and then resolve it with dns.resolve*() can act on records for a different name than the one they validated.\r\n\r\nThis vulnerability affects Node.js 26.x, 24.x, and 22.x.","state":0,"publishedAt":"2026-10-23T16:15:05.831+00:00","modifiedAt":"2026-10-23T16:15:05.831+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:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://nodejs.org/en/blog/vulnerability/october-2026-security-releases"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105482","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105482","identifiers":["CVE-2026-105482"]},"retained":false,"historicalAffected":[]}],"coverage":[]}