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Header injection in nodemailer

Moderate severity GitHub Reviewed Published Dec 10, 2021 to the GitHub Advisory Database • Updated Feb 1, 2023

Package

npm nodemailer (npm)

Affected versions

< 6.6.1

Patched versions

6.6.1

Description

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.

References

Published by the National Vulnerability Database Jun 29, 2021
Reviewed Jun 30, 2021
Published to the GitHub Advisory Database Dec 10, 2021
Last updated Feb 1, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS score

1.669%
(88th percentile)

Weaknesses

CVE ID

CVE-2021-23400

GHSA ID

GHSA-hwqf-gcqm-7353

Source code

No known source code
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