Nodemailer: Quadratic (O(n²)) time complexity in addressparser allows remote denial of service via a crafted address ...

Date Sep 8, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm · nodemailer
High-risk advisory

Summary

Nodemailer: Quadratic (O(n²)) time complexity in addressparser allows remote denial of service via a crafted address list

Why it matters

GitHub has published a reviewed security advisory for nodemailer. Prioritize it with other application dependency updates.

Operator check

Check whether nodemailer is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.