{"id":"CVE-2026-82662","aliases":["GHSA-r7g4-qg5f-qqm2"],"url":"https://o3.security/vulnerability/CVE-2026-82662","summary":"Nodemailer before 8.0.8 TLS Certificate Validation Bypass","details":"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.","published":"2026-08-31T08:46:26.978Z","modified":"2026-09-12T03:30:52.084327723Z","cvss":null,"epss":{"score":0.00124,"percentile":0.02457,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"nodemailer","fixedVersion":"8.0.8"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82662.json"},{"type":"ADVISORY","url":"https://github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82662"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/nodemailer-before-8.0.8-tls-certificate-validation-bypass"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-12T03:30:52.084327723Z"}}