{"cve":"CVE-2026-82662","nvd":{"published":"2026-08-31T09:17:04.093","modified":"2026-09-10T15:48:28.757","status":"Awaiting Analysis","description":"Nodemailer before 8.0.8 disables TLS certificate verification in lib/fetch/index.js through rejectUnauthorized: false, allowing attackers to intercept OAuth2 token requests. Attackers in a machine-in-the-middle position can capture OAuth client secrets, refresh tokens, and access tokens transmitted over compromised HTTPS connections.","cvss_v4":{"vector":"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","score":8.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","score":6.5},"cwes":["CWE-295"],"references":["https://github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2","https://www.vulncheck.com/advisories/nodemailer-before-8.0.8-tls-certificate-validation-bypass","https://github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:50.842544443+00:00"},"epss":{"cve":"CVE-2026-82662","score":0.00192,"percentile":0.0892,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r7g4-qg5f-qqm2","url":"https://osv.dev/vulnerability/GHSA-r7g4-qg5f-qqm2","summary":"Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception","modified":"2026-10-05T23:00:05.741897723Z","packages":[{"ecosystem":"npm","name":"nodemailer","purl":"pkg:npm/nodemailer","ranges":["<8.0.8"],"fixed":["8.0.8"]}]}],"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."]}