DEBIAN-CVE-2026-100699

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Source
https://security-tracker.debian.org/tracker/CVE-2026-100699
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-100699
Upstream
Published
2026-09-26T14:16:54Z
Modified
2026-09-27T05:00:07Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
[none]
Details

Nodemailer is a Node.js email-sending library. In versions >= 9.1.0 and < 10.0.9, the address parser (src/addressparser) mishandles addresses whose local-part is a quoted string and that are followed by RFC 5322 comments, allowing trailing comment-separated domain atoms to be retained in the normalized address. For example, the input "user"@example.com(x)evil.com is parsed to the address value 'user@example.com evil.com', which contains additional attacker-controlled domain text separated by a literal space. This parsed value is used without further strict recipient validation when the message envelope is built (envelope.to in src/mime-node), so a malformed/ambiguous recipient address can be accepted and placed in the SMTP envelope. Whether this results in delivery to an unintended recipient on real SMTP servers has not been confirmed. The issue is a variant of the RFC 5322 comment parsing problem addressed in GHSA-cc9r-2j5m-2m83, affecting the separate quoted-local-part code path. Version 10.0.9 contains a fix.

References

Affected packages

Debian:12 / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/debian/node-nodemailer?arch=source&distro=bookworm

Affected ranges

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

Affected versions

6.*
6.8.0+~6.4.6-1
6.9.4+~6.4.9-1
6.9.4+~6.4.9-2
6.9.4+~6.4.9-3
6.9.4+~6.4.9-4
6.9.13+~6.4.14-1
6.9.15+~6.4.16-1
6.9.16+~6.4.16-1
6.10.0+~6.4.17-1
7.*
7.0.5+~7.0.1-1
7.0.6+~7.0.1-1
7.0.9+~7.0.2-1
7.0.9+~7.0.2-2
7.0.10+~7.0.2-1
7.0.12+~7.0.5-1
8.*
8.0.2+~7.0.11-1
8.0.3+~7.0.11-1
8.0.4+~7.0.11-1
8.0.4+~7.0.11-2
8.0.11+~8.0.1-1
9.*
9.0.0+~8.0.1-1
9.0.3+~8.0.1-1
9.0.5+~8.0.1-1
9.0.6+~8.0.1-1
10.*
10.0.0+~8.0.1-1
10.0.10+~8.0.1-1
10.0.10+~8.0.2-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json"

Debian:13 / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/debian/node-nodemailer?arch=source&distro=trixie

Affected ranges

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

Affected versions

6.*
6.10.0+~6.4.17-1
6.10.0+~6.4.17-1+deb13u1
7.*
7.0.5+~7.0.1-1
7.0.6+~7.0.1-1
7.0.9+~7.0.2-1
7.0.9+~7.0.2-2
7.0.10+~7.0.2-1
7.0.12+~7.0.5-1
8.*
8.0.2+~7.0.11-1
8.0.3+~7.0.11-1
8.0.4+~7.0.11-1
8.0.4+~7.0.11-2
8.0.11+~8.0.1-1
9.*
9.0.0+~8.0.1-1
9.0.3+~8.0.1-1
9.0.5+~8.0.1-1
9.0.6+~8.0.1-1
10.*
10.0.0+~8.0.1-1
10.0.10+~8.0.1-1
10.0.10+~8.0.2-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json"

Debian:14 / node-nodemailer

Package

Name
node-nodemailer
Purl
pkg:deb/debian/node-nodemailer?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
10.0.10+~8.0.1-1

Affected versions

6.*
6.10.0+~6.4.17-1
7.*
7.0.5+~7.0.1-1
7.0.6+~7.0.1-1
7.0.9+~7.0.2-1
7.0.9+~7.0.2-2
7.0.10+~7.0.2-1
7.0.12+~7.0.5-1
8.*
8.0.2+~7.0.11-1
8.0.3+~7.0.11-1
8.0.4+~7.0.11-1
8.0.4+~7.0.11-2
8.0.11+~8.0.1-1
9.*
9.0.0+~8.0.1-1
9.0.3+~8.0.1-1
9.0.5+~8.0.1-1
9.0.6+~8.0.1-1
10.*
10.0.0+~8.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json"