Home/CVE/The package nodemailer before 6.6.1 are vulnerable to HTTP Header Injection if unsanitized user input that may contain n
CVE

CVE-2021-23400

The package nodemailer before 6.6.1 are vulnerable to HTTP Header Injection if unsanitized user input that may contain n

The package nodemailer before 6.6.1 are vulnerable to HTTP Header Injection if unsanitized user input that may contain newlines and carriage returns is passed into an address object.

MEDIUM · CVSS 6.3 EPSS 0.00536
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
▤

Affected Products & Versions

1
nodemailer< 6.6.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm nodemailer MODERATE fixed in 6.6.1
⚠

Public Exploits & PoCs

2
pocsnyk.io · SNYK-JAVA-ORGWEBJARSNPM-1314737snyk.io
pocsnyk.io · SNYK-JS-NODEMAILER-1296415snyk.io
▣

Scoring & Timeline

6.3
MEDIUM · CVSS v3.1 · report@snyk.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Jun 2021 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/nodemailer/nodemailer/commit/7e02648cc8cd863f5085bad3cd09087bccf84b9fPatchThird Party Advisory
https://github.com/nodemailer/nodemailer/issues/1289Third Party Advisory
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