CVE-2025-13033

Nodemailer: nodemailer: email to an unintended domain can occur due to interpretation conflict

Published Nov 14, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Workaround

Currently there's no available mitigation for this flaw.

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-mm7p-fcc7-pg87 Nodemailer: Email to an unintended domain can occur due to Interpretation Conflict
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:ceph_storage:8 cpe:/a:redhat:ceph_storage:8.1::el9
References
Type Values Removed Values Added
CPEs cpe:/a:redhat:rhdh:1 cpe:/a:redhat:rhdh:1.9::el9
References
Type Values Removed Values Added
Weaknesses CWE-1286
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Nodemailer: nodemailer: email to an unintended domain can occur due to interpretation conflict
First Time appeared Redhat
Redhat acm
Redhat ceph Storage
Redhat rhdh
Weaknesses CWE-436
CPEs cpe:/a:redhat:acm:2
cpe:/a:redhat:ceph_storage:8
cpe:/a:redhat:rhdh:1
Vendors & Products Redhat
Redhat acm
Redhat ceph Storage
Redhat rhdh
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
May 11, 2026, 11:26 AM
Reserved
Nov 11, 2025, 4:15 PM
Status
Deferred
Published
Nov 14, 2025, 8:15 PM
Modified
Oct 18, 2026, 8:10 PM
Severity
Moderate
Public date
Oct 7, 2025, 1:42 PM