CVE-2026-82662Nodemailer before 8.0.8 TLS Certificate Validation Bypass
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
- Weakness (CWE)
- CWE-295
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 1, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
nodemailer nodemailer nodemailer:nodemailer (from the name) | before 8.0.8; 8.0.8 not affected | CNA record |
References
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2vendor-advisory
- https://www.vulncheck.com/advisories/nodemailer-before-8.0.8-tls-certificate-validation-bypassthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.