8.8

CVE-2021-23400: nodemailer Injection

CVSS: 8.8v3.1HighModified
AliasesUBUNTU-CVE-2021-23400DEBIAN-CVE-2021-23400GHSA-hwqf-gcqm-7353
Published 29-06-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-23400 is a high (CVSS 8.8) Injection vulnerability in nodemailer. EPSS estimates a 1.39% chance of exploitation in the next 30 days, higher than 71.9% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
45/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.39%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference

Timeline

  1. 29-06-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

1.39%

Chance of exploitation in the next 30 days

Percentile

72%

Versus all other CVEs

30-day change

0.00 pp

From 1.39% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.39%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (snyk.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • node-nodemailer< 6.4.17-3
Nodemailer1 product
Npm1 product
  • nodemailer< 6.6.1
Ubuntu1 product
  • node-nodemailerAll versions (No fix recorded)

4 vendors · 4 products

References

8 links