# CVE-2025-13033: node-nodemailer: A vulnerability was identified in the email parsing library due to improper handling of specially formatted recipient...

CVE-2025-13033 is fixed in node-nodemailer on 1 platform, first by DEBIAN-CVE-2025-13033, released November 14, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-13033
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0058
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 14, 2025

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-nodemailer Debian 13.5 (trixie) | 6.10.0+~6.4.17-1+deb13u1 | [DEBIAN-CVE-2025-13033](https://patchblox.com/security/data/fix/linux/debian-cve-2025-13033.md) | Nov 14, 2025 |
| Linux | node-nodemailer Debian 14 | 7.0.9+~7.0.2-1 | [DEBIAN-CVE-2025-13033](https://patchblox.com/security/data/fix/linux/debian-cve-2025-13033.md) | Nov 14, 2025 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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