{"id":"GHSA-vm5r-23w9-m8hx","summary":"Duplicate Advisory: Nodemailer addressparser: O(n^2) on comment-joined addresses enables a remote DoS (reachable via mailparser)","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-prgh-xp8r-p3m5. This link is maintained to preserve external references.\n\n## Original Description\nNodemailer versions 9.1.0 through 10.0.4 contain a quadratic time complexity vulnerability in the addressparser component when parsing email addresses with RFC 5322 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js event loop for several seconds, causing denial of service.","modified":"2026-10-05T23:45:08.177887242Z","published":"2026-09-13T12:31:12Z","withdrawn":"2026-10-05T23:30:00Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-10-05T23:30:00Z","nvd_published_at":"2026-09-13T12:17:16Z","cwe_ids":["CWE-407"]},"references":[{"type":"WEB","url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-prgh-xp8r-p3m5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90776"},{"type":"WEB","url":"https://github.com/nodemailer/nodemailer/commit/c07f17518d25aca8ab2ad66968dcbca538c24b89"},{"type":"WEB","url":"https://github.com/nodemailer/nodemailer"},{"type":"WEB","url":"https://github.com/nodemailer/nodemailer/blob/v10.0.4/src/addressparser/index.ts#L251"},{"type":"WEB","url":"https://github.com/nodemailer/nodemailer/releases/tag/v10.0.5"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/nodemailer-9.1.0-through-10.0.4-denial-of-service-via-quadratic-address-parsing"}],"affected":[{"package":{"name":"nodemailer","ecosystem":"npm","purl":"pkg:npm/nodemailer"},"ranges":[{"type":"SEMVER","events":[{"introduced":"9.1.0"},{"last_affected":"10.0.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-vm5r-23w9-m8hx/GHSA-vm5r-23w9-m8hx.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}