UnratedFix available

DEBIAN-CVE-2026-100699

Type: advisorySource: OSV1 source record

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.

Announced 26 Sept 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-100699

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-100699

node-nodemailer

Source reference: /affected/0/package/name

Affected versions: 10.0.0+~8.0.1-1
Source reference: /affected/0/versions
10.0.10+~8.0.1-1
Source reference: /affected/0/versions
10.0.10+~8.0.2-1
Source reference: /affected/0/versions
6.10.0+~6.4.17-1
Source reference: /affected/0/versions
6.8.0+~6.4.6-1
Source reference: /affected/0/versions
6.9.13+~6.4.14-1
Source reference: /affected/0/versions
6.9.15+~6.4.16-1
Source reference: /affected/0/versions
6.9.16+~6.4.16-1
Source reference: /affected/0/versions
6.9.4+~6.4.9-1
Source reference: /affected/0/versions
6.9.4+~6.4.9-2
Source reference: /affected/0/versions
6.9.4+~6.4.9-3
Source reference: /affected/0/versions
6.9.4+~6.4.9-4
Source reference: /affected/0/versions
7.0.10+~7.0.2-1
Source reference: /affected/0/versions
7.0.12+~7.0.5-1
Source reference: /affected/0/versions
7.0.5+~7.0.1-1
Source reference: /affected/0/versions
7.0.6+~7.0.1-1
Source reference: /affected/0/versions
7.0.9+~7.0.2-1
Source reference: /affected/0/versions
7.0.9+~7.0.2-2
Source reference: /affected/0/versions
8.0.11+~8.0.1-1
Source reference: /affected/0/versions
8.0.2+~7.0.11-1
Source reference: /affected/0/versions
8.0.3+~7.0.11-1
Source reference: /affected/0/versions
8.0.4+~7.0.11-1
Source reference: /affected/0/versions
8.0.4+~7.0.11-2
Source reference: /affected/0/versions
9.0.0+~8.0.1-1
Source reference: /affected/0/versions
9.0.3+~8.0.1-1
Source reference: /affected/0/versions
9.0.5+~8.0.1-1
Source reference: /affected/0/versions
9.0.6+~8.0.1-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

node-nodemailer

Source reference: /affected/1/package/name

Affected versions: 10.0.0+~8.0.1-1
Source reference: /affected/1/versions
10.0.10+~8.0.1-1
Source reference: /affected/1/versions
10.0.10+~8.0.2-1
Source reference: /affected/1/versions
6.10.0+~6.4.17-1
Source reference: /affected/1/versions
6.10.0+~6.4.17-1+deb13u1
Source reference: /affected/1/versions
7.0.10+~7.0.2-1
Source reference: /affected/1/versions
7.0.12+~7.0.5-1
Source reference: /affected/1/versions
7.0.5+~7.0.1-1
Source reference: /affected/1/versions
7.0.6+~7.0.1-1
Source reference: /affected/1/versions
7.0.9+~7.0.2-1
Source reference: /affected/1/versions
7.0.9+~7.0.2-2
Source reference: /affected/1/versions
8.0.11+~8.0.1-1
Source reference: /affected/1/versions
8.0.2+~7.0.11-1
Source reference: /affected/1/versions
8.0.3+~7.0.11-1
Source reference: /affected/1/versions
8.0.4+~7.0.11-1
Source reference: /affected/1/versions
8.0.4+~7.0.11-2
Source reference: /affected/1/versions
9.0.0+~8.0.1-1
Source reference: /affected/1/versions
9.0.3+~8.0.1-1
Source reference: /affected/1/versions
9.0.5+~8.0.1-1
Source reference: /affected/1/versions
9.0.6+~8.0.1-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

node-nodemailer

Source reference: /affected/2/package/name

Affected versions: 10.0.0+~8.0.1-1
Source reference: /affected/2/versions
6.10.0+~6.4.17-1
Source reference: /affected/2/versions
7.0.10+~7.0.2-1
Source reference: /affected/2/versions
7.0.12+~7.0.5-1
Source reference: /affected/2/versions
7.0.5+~7.0.1-1
Source reference: /affected/2/versions
7.0.6+~7.0.1-1
Source reference: /affected/2/versions
7.0.9+~7.0.2-1
Source reference: /affected/2/versions
7.0.9+~7.0.2-2
Source reference: /affected/2/versions
8.0.11+~8.0.1-1
Source reference: /affected/2/versions
8.0.2+~7.0.11-1
Source reference: /affected/2/versions
8.0.3+~7.0.11-1
Source reference: /affected/2/versions
8.0.4+~7.0.11-1
Source reference: /affected/2/versions
8.0.4+~7.0.11-2
Source reference: /affected/2/versions
9.0.0+~8.0.1-1
Source reference: /affected/2/versions
9.0.3+~8.0.1-1
Source reference: /affected/2/versions
9.0.5+~8.0.1-1
Source reference: /affected/2/versions
9.0.6+~8.0.1-1
Source reference: /affected/2/versions
Fixed versions: 10.0.10+~8.0.1-1
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
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        "type": "ECOSYSTEM",
        "events": [
          {
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    "package": {
      "name": "node-nodemailer",
      "purl": "pkg:deb/debian/node-nodemailer?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "10.0.0+~8.0.1-1",
      "10.0.10+~8.0.1-1",
      "10.0.10+~8.0.2-1",
      "6.10.0+~6.4.17-1",
      "6.8.0+~6.4.6-1",
      "6.9.13+~6.4.14-1",
      "6.9.15+~6.4.16-1",
      "6.9.16+~6.4.16-1",
      "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",
      "7.0.10+~7.0.2-1",
      "7.0.12+~7.0.5-1",
      "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",
      "8.0.11+~8.0.1-1",
      "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",
      "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"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
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        "events": [
          {
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    "package": {
      "name": "node-nodemailer",
      "purl": "pkg:deb/debian/node-nodemailer?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "10.0.0+~8.0.1-1",
      "10.0.10+~8.0.1-1",
      "10.0.10+~8.0.2-1",
      "6.10.0+~6.4.17-1",
      "6.10.0+~6.4.17-1+deb13u1",
      "7.0.10+~7.0.2-1",
      "7.0.12+~7.0.5-1",
      "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",
      "8.0.11+~8.0.1-1",
      "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",
      "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"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
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  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
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          }
        ]
      }
    ],
    "package": {
      "name": "node-nodemailer",
      "purl": "pkg:deb/debian/node-nodemailer?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "10.0.0+~8.0.1-1",
      "6.10.0+~6.4.17-1",
      "7.0.10+~7.0.2-1",
      "7.0.12+~7.0.5-1",
      "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",
      "8.0.11+~8.0.1-1",
      "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",
      "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"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-100699.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #59438 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 18:30:19 GMT
Publisher date: Sat, 26 Sep 2026 14:16:54 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-100699 · Revision 1Source updated