nodemailer
10.2.1 · 22 Oct 2026MIT-023.7M / weekRepositoryHomepagenpmAtom feed
Your version
9.1.1 is the newest release of 9.x.
In short
8 fixed1 internal
Security
14 advisories affect 9.0.5; 10.1.4 fixes them
- HighNodemailer: Quadratic backtracking in the addressparser free-text fallback allows remote denial of serviceGHSA-v53p-9fqp-m79j · 29 Sep 2026Fixed in 10.0.6
- HighNodemailer: Quadratic (O(n²)) time complexity in addressparser allows remote denial of service via a crafted address listGHSA-2x7j-588g-ccc2 · 8 Sep 2026Fixed in 9.1.0
- ModerateNodemailer: Quadratic backtracking in SMTP AUTH mechanism detection regexes allows pre-auth remote denial of serviceGHSA-4ffr-jq9g-5ffx · 27 Oct 2026Fixed in 10.0.13
- ModerateNodemailer: RFC 5322 comment inside an angle-bracket address is never strippedGHSA-g73g-hqqh-jr95 · 27 Oct 2026Fixed in 10.0.13
- ModerateNodemailer: Quadratic (O(n^2)) SMTP client reply parsing lets a malicious server or MITM cause a pre-auth remote denial of serviceGHSA-4g23-2xm8-66gc · 27 Oct 2026Fixed in 10.0.10
9 more
- ModerateNodemailer: A nested comment ends early in addressparser, releasing the rest of the comment as a recipientGHSA-8c8m-p3m8-cjg8 · 23 Oct 2026Fixed in 10.1.4
- ModerateNodemailer: A ";" inside a quoted string or comment ends an address group early in addressparser, turning display text into a recipientGHSA-m943-m63m-w62w · 23 Oct 2026Fixed in 10.1.4
- ModerateNodemailer: A ">" inside a quoted local part ends an angle-addr early in addressparser, delivering to a domain the header does not nameGHSA-85x2-q946-cp5h · 23 Oct 2026Fixed in 10.1.4
- ModerateNodemailer: Quadratic (O(n^2)) DKIM header unfolding lets a large folded header cause remote denial of service during signingGHSA-39m8-27wv-hr27 · 22 Oct 2026Fixed in 10.0.10
- ModerateNodemailer: Nested structured recipient arrays bypass the parser depth limit and cause stack exhaustion DoSGHSA-8vvx-rff5-p5rq · 29 Sep 2026Fixed in 10.0.2
- ModerateNodemailer: Process-global DNS cache reuses TLS `servername` across transports, enabling cross-tenant SMTP credential disclosureGHSA-6vj9-mwq6-2f5v · 28 Sep 2026Fixed in 10.0.2
- ModerateNodemailer: IDN/Punycode domain allow-list bypass leads to email delivery to an attacker-controlled domainGHSA-wmmp-3585-3rmp · 8 Sep 2026Fixed in 9.1.0
- ModerateNodemailer: Recipient-domain validation bypass via RFC 5322 comment mis-parsing leads to email delivery to an attacker-controlled domainGHSA-cc9r-2j5m-2m83 · 8 Sep 2026Fixed in 9.1.0
- ModerateNodemailer: resolveContent() on a MailMessage bypasses disableFileAccess/disableUrlAccess when called with the legacy signatureGHSA-8m3c-c648-2xjj · 8 Sep 2026Fixed in 9.1.1
Release note
Bug Fixes
mailer: escape specials in List-* header comments
mime-funcs: star the continuation key of a restarted parameter line
mime-node: keep control chars out of header values and msg-id headers
mime: encode DEL in header parameters and List-* comments
mime: keep control chars out of the remaining header positions
mime: normalize an address parsed out of a string as well
mime: normalize an address so header and envelope agree
mime: stop a header key callback and the dkim tags from injecting