Nodemailer: Nested structured recipient arrays bypass the parser depth limit and cause stack exhaustion DoS — GHSA-8VVX-RFF5-P5RQ

Summary

## Submission metadata | Field | Value | |---|---| | Ecosystem | npm | | Package | `nodemailer` | | Repository | https://github.com/nodemailer/nodemailer | | Tested commit | `40d52215aac65b811d7e131bc916f68605efd9d2` | | Current tested version | `10.0.1` | | Confirmed vulnerable versions | `2.7.2`, `3.0.0`, `7.0.11`, `9.1.1`, `10.0.1` | | Proposed affected range | `>= 2.7.2, <= 10.0.1` | | Patched version | 10.0.2…

Timeline

Published by source

2026-09-29

Risk context

• Reported severity or threat level: medium.
• Reported CVSS score: 5.9 out of 10.
• Review exposure for the affected product or family: npm: nodemailer.

Product

npm: nodemailer

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source

Evidence and provenance

Canonical advisory ID

GHSA-8VVX-RFF5-P5RQ

Source

GitHub

Vendor

GitHub

Published by source

2026-09-29

Last source activity

2026-09-29

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.