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 …
Historical advisory saved 11 Nov 2026 05:27:38 UTC. The publisher may have updated it since then. Latest advisory.
euvd · EUVD-2026-87672
PublishedNodemailer 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 '[email protected] 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.
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EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
Original publisher date fields
datePublished: Sep 26, 2026, 1:23:55 PM
dateUpdated: Sep 28, 2026, 5:43:19 PM
1 related source bulletins · separate from aliases
WID-SEC-W-2026-4410: IBM App Connect Enterprise: Mehrere Schwachstellen
CVE-2026-100699 · CVE-2026-100700 · CVE-2026-100701 · CVE-2026-100702 · CVE-2026-101898 · CVE-2026-101900 · CVE-2026-101901 · CVE-2026-101902 · CVE-2026-101903 · CVE-2026-101904 · CVE-2026-101905 · CVE-2026-101906 · CVE-2026-101907 · CVE-2026-101908 · CVE-2026-101909 · CVE-2026-101915 · CVE-2026-101916 · CVE-2026-104850 · CVE-2026-106444 · CVE-2026-106445 · CVE-2026-106446 · CVE-2026-110869 · CVE-2026-111767 · CVE-2026-15187 · CVE-2026-33937 · CVE-2026-83745 · CVE-2026-84003 · CVE-2026-86535 · CVE-2026-90776 · CVE-2026-91863 · CVE-2026-91864 · CVE-2026-91865 · CVE-2026-91866 · CVE-2026-91867 · CVE-2026-93687 · CVE-2026-93749 · CVE-2026-94645 · CVE-2026-94646 · CVE-2026-96294
- Source published
- Sep 26, 2026, 1:23:55 PM (timezone not stated)
- Source modified
- Sep 28, 2026, 5:43:19 PM (timezone not stated)
- Saved here
- 11 Nov 2026 05:27:38 UTC
- Source terms
- ENISA EUVD · source terms and attribution apply
Original source record · Cite this exact observation · Complete original publisher JSON
Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
EUVD CVSS 4.0 · 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N