GHSA-jj37-3377-m6vv: Duplicate Advisory Nodemailer: Email To An Unintended Vulnerability

HIGH
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CVSS 7.5
CWE-436 CWE-1286
Published
Advisory Summary

GHSA-jj37-3377-m6vv is a HIGH (CVSS 7.5) nodemailer: email to an unintended vulnerability (CWE-436: Interpretation Conflict) affecting Duplicate Advisory libraries in the npm ecosystem. The issue involves nodemailer: email to an unintended domain can occur due to interpretation conflict. Remediation is available by upgrading affected packages to version 7.0.7.

GHSA-jj37-3377-m6vv at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-jj37-3377-m6vv
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-436: Interpretation Conflict
Affected Product Duplicate Advisory
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix GHSA-jj37-3377-m6vv

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nodemailer fixed: 7.0.7 
npm install nodemailer@7.0.7
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls nodemailer

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-jj37-3377-m6vv, inspect your project dependencies using npm:

npm ls nodemailer

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.0.7), your application is affected.

Note: The npm ls nodemailer command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-436: Interpretation Conflict, where product a handles inputs or steps differently than product b, which causes a to perform incorrect actions based on its perception of b's state. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-mm7p-fcc7-pg87. This link is maintained to preserve external references. ## Original 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.

GHSA-jj37-3377-m6vv Affected Duplicate Advisory Versions

1 component(s)
Fixed Versions:
7.0.7
Product / Package Ecosystem Affected Versions Fixed Version
nodemailer
npm/nodemailer
npm
< 7.0.7
7.0.7

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-mm7p-fcc7-pg87
NVD — GHSA-jj37-3377-m6vv NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13033
Security Fix Commit FIX COMMIT
https://github.com/nodemailer/nodemailer/commit/1150d99fba77280df2cfb1885c43df23109a8626
access.redhat.com/errata/rhsa-2026:15... WEB
https://access.redhat.com/errata/RHSA-2026:15979
access.redhat.com/errata/rhsa-2026:37... WEB
https://access.redhat.com/errata/RHSA-2026:3751
Duplicate Advisory Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2025-13033
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2402179
Duplicate Advisory Source Repository REPOSITORY
https://github.com/nodemailer/nodemailer

Frequently Asked Questions

What is GHSA-jj37-3377-m6vv?
GHSA-jj37-3377-m6vv is a security vulnerability in Duplicate Advisory involving Nodemailer: Email to an unintended domain can occur due to Interpretation Conflict under CWE-436: Interpretation Conflict.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to 7.0.7 across affected packages: nodemailer.
What version fixes GHSA-jj37-3377-m6vv?
Upgrading to 7.0.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nodemailer affected?
Yes, nodemailer is affected in releases prior to 7.0.7. Upgrade your dependency to 7.0.7 or later.
What is the CVSS score of GHSA-jj37-3377-m6vv?
GHSA-jj37-3377-m6vv has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with GHSA-jj37-3377-m6vv?
GHSA-jj37-3377-m6vv is classified under CWE-436: Interpretation Conflict (Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.).
How can I check npm dependencies for GHSA-jj37-3377-m6vv?
Run the dependency tree command: 'npm ls nodemailer'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-jj37-3377-m6vv",
  "modified" : "2026-05-13T13:45:17Z",
  "published" : "2025-11-14T21:30:29Z",
  "withdrawn" : "2025-11-17T17:17:33Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: Nodemailer: Email to an unintended domain can occur due to Interpretation Conflict",
  "details" : "## Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-mm7p-fcc7-pg87. This link is maintained to preserve external references.\n\n## Original Description\nA 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "nodemailer"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "7.0.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nodemailer/nodemailer/security/advisories/GHSA-mm7p-fcc7-pg87"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-13033"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nodemailer/nodemailer/commit/1150d99fba77280df2cfb1885c43df23109a8626"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2026:15979"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2026:3751"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2025-13033"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2402179"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nodemailer/nodemailer"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1286", "CWE-436" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-11-17T17:17:33Z",
    "nvd_published_at" : "2025-11-14T20:15:45Z"
  }
}