cvedb.io
CVE-2026-27492
MEDIUM · CVSS 4.7
EPSS exploitation probability: 0%
Published 2026-02-21T11:15:57.287 · Last modified 2026-06-17T10:27:14.857

Summary

Lettermint Node.js SDK is the official Node.js SDK for Lettermint. In versions 1.5.0 and below, email properties (such as to, subject, html, text, and attachments) are not reset between sends when a single client instance is reused across multiple .send() calls. This can cause properties from a previous send to leak into a subsequent one, potentially delivering content or recipient addresses to unintended parties. Applications sending emails to different recipients in sequence — such as transactional flows like password resets or notifications — are affected. This issue has been fixed in version 1.5.1.

Affected products

lettermint — lettermint

Does this affect you?

Add your gear to cvedb and we'll alert you only when lettermint ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.