{"id":"CVE-2026-110872","revision":"054c6315a81640b7a0a4d8a98fa47faf","records":[{"revision":"054c6315a81640b7a0a4d8a98fa47faf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110872","aliases":[],"title":"Nodemailer 3.0.0 before 10.0.10 Denial of Service via SMTP Reply Parsing","description":"Nodemailer from 3.0.0 before 10.0.10 contains a quadratic complexity denial of service vulnerability in the SMTP client reply parser in SMTPConnection._onData and isPartialResponse. A malicious SMTP server or on-path attacker can stream continuation lines without a completion line before authentication, blocking the Node.js event loop and exhausting memory.","state":0,"publishedAt":"2026-10-14T22:53:00.625+00:00","modifiedAt":"2026-10-15T13:30:56.785+00:00","affected":[{"ecosystem":"Vendor product","name":"nodemailer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"nodemailer\",\n                    \"product\": \"nodemailer\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/nodemailer\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"10.0.10\"\n                        },\n                        {\n                            \"version\": \"10.0.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.2,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.9,"severity":"MEDIUM"}],"references":["https://github.com/nodemailer/nodemailer/security/advisories/GHSA-4g23-2xm8-66gc","https://www.vulncheck.com/advisories/nodemailer-3.0.0-before-10.0.10-denial-of-service-via-smtp-reply-parsing"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110872","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110872","identifiers":["CVE-2026-110872"]},"retained":false,"historicalAffected":[]}],"coverage":[]}