Answer in brief
CVE-2026-82662 records a High severity (CVSS 6.5) vulnerability in Nodemailer before 8.0.8 TLS Certificate Validation Bypass. The current sources do not mark it as known exploited. The current feed maps nodemailer/nodemailer (generic), nodemailer (npm), nodemailer (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps nodemailer/nodemailer (generic), nodemailer (npm), nodemailer (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| nodemailer/nodemailergeneric | >=0 <8.0.8 | 8.0.8 |
| nodemailernpm | <=8.0.7 | 8.0.8 |
| nodemailernpm | >=0 <8.0.8 | 8.0.8 |
Published upstream
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.