UBUNTU-CVE-2026-90776

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Source
https://ubuntu.com/security/CVE-2026-90776
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90776.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-90776
Upstream
Published
2026-09-13T12:17:00Z
Modified
2026-09-16T14:03:34Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Nodemailer versions 9.1.0 through 10.0.4 contain a quadratic time complexity vulnerability in the addressparser component when parsing email addresses with RFC 5322 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js event loop for several seconds, causing denial of service.

References

Affected packages

Ubuntu:20.04:LTS / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/ubuntu/node-nodemailer?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.3.0-2
6.3.1-1
6.4.0-1
6.4.1-1
6.4.2-1
6.4.5-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-nodemailer",
            "binary_version": "6.4.5-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90776.json"

Ubuntu:22.04:LTS / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/ubuntu/node-nodemailer?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.4.17-3
6.7.0-1
6.7.0-2
6.7.1+~6.4.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-nodemailer",
            "binary_version": "6.7.1+~6.4.4-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90776.json"

Ubuntu:24.04:LTS / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/ubuntu/node-nodemailer?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.9.4+~6.4.9-2
6.9.4+~6.4.9-3ubuntu1
6.9.4+~6.4.9-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-nodemailer",
            "binary_version": "6.9.4+~6.4.9-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90776.json"

Ubuntu:26.04:LTS / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/ubuntu/node-nodemailer?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.0.5+~7.0.1-1
7.0.9+~7.0.2-2
7.0.10+~7.0.2-1
7.0.12+~7.0.5-1
8.*
8.0.4+~7.0.11-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "node-nodemailer",
            "binary_version": "8.0.4+~7.0.11-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-90776.json"