{"cve":"CVE-2026-82853","nvd":{"published":"2026-08-31T09:17:05.320","modified":"2026-09-10T15:48:28.757","status":"Awaiting Analysis","description":"Nodemailer versions before 8.0.5 contain an SMTP command injection vulnerability in the transport name option used in EHLO/HELO commands. The name parameter is concatenated directly into SMTP commands without sanitizing carriage return and line feed characters, allowing attackers to inject arbitrary SMTP commands for email spoofing and phishing attacks.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","score":6.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.9},"cwes":["CWE-93"],"references":["https://github.com/nodemailer/nodemailer/security/advisories/GHSA-vvjj-xcjg-gr5g","https://www.vulncheck.com/advisories/nodemailer-before-8.0.5-smtp-command-injection-via-crlf","https://github.com/nodemailer/nodemailer/security/advisories/GHSA-vvjj-xcjg-gr5g"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-82853","score":0.01031,"percentile":0.63756,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-vvjj-xcjg-gr5g","url":"https://osv.dev/vulnerability/GHSA-vvjj-xcjg-gr5g","summary":"Nodemailer Vulnerable to SMTP Command Injection via CRLF in Transport name Option (EHLO/HELO) ","modified":"2026-09-10T03:51:03.476709040Z","packages":[{"ecosystem":"npm","name":"nodemailer","purl":"pkg:npm/nodemailer","ranges":["<8.0.5"],"fixed":["8.0.5"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}