Answer in brief
CVE-2026-92596 records a High severity (CVSS 7.5) vulnerability in Nodemailer before 9.1.0 Denial of Service via addressparser. 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 7.5. 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 <9.1.0 | 9.1.0 |
| nodemailernpm | <9.1.0 | 9.1.0 |
| nodemailernpm | >=0 <9.1.0 | 9.1.0 |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 8, 2026
Nodemailer before 9.1.0 contains a quadratic time complexity vulnerability in the addressparser component that allows remote attackers to cause denial of service by supplying a crafted comma-separated address list. Attackers can send a single email with a large number of addresses to block the Node.js event loop for extended periods, consuming 100% CPU and freezing the process.
Quoted source text, attributed separately from HOL analysis.