Inefficient Algorithmic Complexity Affecting org.webjars.npm:nodemailer package, versions [,9.1.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published14 Sept 2026
- disclosed8 Sept 2026
- creditEric Labrador Sainz
Introduced: 8 Sep 2026
NewCVE-2026-92596 (opens in a new tab)How to fix?
Upgrade org.webjars.npm:nodemailer to version 9.1.0 or higher.
Overview
org.webjars.npm:nodemailer is an Easy as cake e-mail sending from your Node.js applications
Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity through the addressparser function in lib/addressparser/index.js. An attacker can block the Node.js event loop by supplying a crafted comma-separated address list, such as a To, Cc, Bcc, From, or Reply-To header value, that forces the parser to spend CPU time proportional to the square of the input size. This stalls email processing and delays or freezes every other request handled by the same process.