{"id":"CVE-2026-125755","summary":"Nodemailer 3.0.0 before 10.4.1 Recipient Allow-List Bypass via addressparser","details":"Nodemailer 3.0.0 before 10.4.1 contains an address parsing flaw in addressparser that truncates domains at folding whitespace or comments before a dot, allowing attackers to bypass recipient domain restrictions. Attackers can submit crafted to, cc, bcc or replyTo addresses that pass RFC 5322 domain checks but deliver mail to an attacker-chosen address under the application's sender identity.","aliases":["GHSA-3q53-mvfw-q9v8"],"modified":"2026-11-11T10:47:26.757034762Z","published":"2026-11-10T15:22:50.055Z","database_specific":{"cwe_ids":["CWE-436"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125755.json","unresolved_ranges":[{"extracted_events":[{"range":[{"introduced":"3.0.0"},{"fixed":"10.4.1"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]},{"extracted_events":[{"range":[{"introduced":"3.0.0"},{"fixed":"10.4.1"}],"source":"CPE_FIELD","strategy":"CPEApplicability"}]},{"extracted_events":[{"range":[{"introduced":"3.0.0"},{"fixed":"10.4.1"}],"source":"DESCRIPTION"}]}],"cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125755.json"},{"type":"ARTICLE","url":"https://github.com/nodemailer/nodemailer/blob/3b5cf1eec32c81f287870c8a1c9c09640062cfd5/src/addressparser/index.ts#L330-L345"},{"type":"FIX","url":"https://github.com/nodemailer/nodemailer/commit/c2b9c41bb81b2294ebadd294ad15ff035a17d0a5"},{"type":"ADVISORY","url":"https://github.com/nodemailer/nodemailer/releases/tag/v10.4.1"},{"type":"ADVISORY","url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-3q53-mvfw-q9v8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-125755"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/nodemailer-3.0.0-before-10.4.1-recipient-allow-list-bypass-via-addressparser"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nodemailer/nodemailer","events":[{"introduced":"0"},{"fixed":"c2b9c41bb81b2294ebadd294ad15ff035a17d0a5"},{"fixed":"434b93cedc76108c43ac9b71afb21e4e7af81f13"}],"database_specific":{"extracted_events":[{"range":[{"fixed":"c2b9c41bb81b2294ebadd294ad15ff035a17d0a5"}],"source":"REFERENCES_COMMIT"},{"original_tag":"v10.4.1","range":[{"fixed":"434b93cedc76108c43ac9b71afb21e4e7af81f13"}],"source":"REFERENCES_TAG"}]}}],"versions":["v10.4.0","v10.3.1","v10.3.0","v10.2.1","v10.2.0","v10.1.7","v10.1.6","v10.1.5","v10.1.4","v10.1.3","v10.1.2","v10.1.1","v10.1.0","v10.0.16","v10.0.15","v10.0.14","v10.0.13","v10.0.12","v10.0.11","v10.0.10","v10.0.9","v10.0.8","v10.0.7","v10.0.6","v10.0.5","v10.0.4","v10.0.3","v10.0.2","v10.0.1","v10.0.0","v9.1.1","v9.1.0","v9.0.6","v9.0.5","v9.0.4","v9.0.3","v9.0.2","v9.0.1","v9.0.0","v8.0.11","v8.0.10","v8.0.9","v8.0.8","v8.0.7","v8.0.6","v8.0.5","v8.0.4","v8.0.3","v8.0.2","v8.0.1","v8.0.0","v7.0.13","v7.0.12","v7.0.11","v7.0.10","v7.0.9","v7.0.7","v7.0.6","v7.0.5","v6.9.16","v6.9.15","v6.9.14","v6.9.13","v6.9.10","v6.9.8","v6.9.7","v6.9.6","v6.9.5","v6.9.4","v6.9.3","v6.9.2","v6.9.1","v6.9.0","v6.8.0","v6.7.8","v6.7.7","v6.7.6","v6.7.5","v6.7.4","v6.7.3","v6.7.2","v6.7.1","v6.7.0","v6.6.5","v6.6.4","v6.6.3","v6.6.1","v6.6.0","v6.5.0","v6.4.18","v6.4.17","v6.4.16","v6.4.15","v6.4.14","v6.4.13","v6.4.12","v6.4.11","v6.4.10","v6.4.8","v6.4.7","v6.4.6","v6.4.5","v6.4.4","v6.4.3","v6.4.2","v6.4.1","v6.4.0","v6.3.1","v6.3.0","v6.2.1","v6.2.0","v6.1.1","v6.1.0","v6.0.0","v5.1.1","v5.1.0","v5.0.1","v5.0.0","v4.7.0","v4.6.8","v4.6.7","v4.6.6","v4.6.5","v4.6.4","v4.6.3","v4.6.2","v4.6.1","v4.6.0","v4.5.0","v4.4.2","v4.4.1","v4.4.0","v4.3.1","v4.3.0","v4.2.0","v4.1.3","v4.1.2","v4.1.1","v4.1.0","v4.0.1","v4.0.0","v3.1.8","v3.1.7","v3.1.6","v3.1.5","v3.1.4","v3.1.3","v3.1.2","v3.1.1","v3.1.0","v3.0.2","v3.0.1","v3.0.0","v2.7.2","v2.7.1","v2.7.0","v2.6.4","v2.6.3","v2.6.2","v2.6.1","v2.6.0","v2.5.0","v2.4.2","v2.4.1","v2.4.0","v2.3.2","v2.3.2-gpgtest.0","v2.3.1","v2.3.0","v2.2.1","v2.2.0","v2.1.0","v2.0.0","v1.11.0","v1.10.0","v1.9.0","v1.8.0","v1.7.0","v1.6.0","v1.5.0","v1.4.0","v1.3.4","v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.2","v1.2.1","v1.2.0","v1.1.2","v1.1.1","v1.1.0","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0","v0.7.1","v0.7.0","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.15","v0.5.14","v0.5.13","v0.5.12","v0.5.11","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.4.0","v0.3.45","v0.3.44","v0.3.43","v0.3.42","v0.3.41","v0.3.40","v0.3.39","v0.3.38","v0.3.37","v0.3.35","v0.3.34","v0.3.33","v0.3.32","v0.3.31","v0.3.30","v0.3.29","v0.3.28","v0.3.27","v0.3.26","v0.3.25","v0.3.22","v0.3.21","v0.3.20","v0.3.19","v0.3.18","v0.3.17","v0.3.16","v0.3.15","v0.3.14","v0.3.13","v0.3.12","v0.3.11","v0.3.10","v0.3.9","v0.3.8","v0.3.7","v0.3.6","v0.3.5","v0.3.4","v0.3.3","v0.3.2","v0.3.1","v0.3.0","v0.2.4","v0.2.3","v0.2.2","v0.2.0","v0.1.24","v0.1.23","v0.1.22","v0.1.21","v0.1.20","v0.1.19","v0.1.17","v0.1.16","v0.1.15","v0.1.14","v0.1.13","v0.1.12","v0.1.10","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-125755.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}