# Nodemailer vulnerabilities Source: https://junglewise.ai/threats/technologies/nodemailer Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 10 November 2026, 17:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/nodemailer.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 32 vulnerabilities in Nodemailer: 1 in the last 7 days and 27 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-125755, was published on 10 November 2026. 9 vulnerabilities in the last four weeks, up 29% on the four before (7). ## Counts - Last 7 days: 1 - Last 30 days: 10 - Last 90 days: 27 - All time: 32 (1 critical, 0 exploited in the wild) ## About Nodemailer Node.js library for sending emails via SMTP or other transport methods. ## Latest Nodemailer vulnerabilities - [CVE-2026-125755: Nodemailer address parsing bypass in addressparser](https://junglewise.ai/threats/cve-2026-125755-nodemailer-3-0-0-before-10-4-1-contains-an-address-parsing-flaw) (medium, CVSS 6.5, published 10 Nov 2026) - [CVE-2026-121424: Nodemailer address parsing bypass in nested RFC 5322 comments](https://junglewise.ai/threats/cve-2026-121424-nodemailer-from-3-0-0-before-10-1-4-contains-an-address-parsing) (medium, CVSS 6.5, published 3 Nov 2026) - [Nodemailer addressparser RFC 5322 comment parsing bypass](https://junglewise.ai/threats/nodemailer-a-nested-comment-ends-early-in-addressparser-releasing-the-4e80613c) (medium, CVSS 6.5, published 23 Oct 2026) - [Nodemailer addressparser group terminator bypass in quoted strings](https://junglewise.ai/threats/nodemailer-a-inside-a-quoted-string-or-comment-ends-an-address-group-b8b045f9) (medium, CVSS 6.5, published 23 Oct 2026) - [Nodemailer addressparser angle-addr parsing bypass](https://junglewise.ai/threats/nodemailer-a-inside-a-quoted-local-part-ends-an-angle-addr-early-in-28663cfb) (medium, CVSS 6.5, published 23 Oct 2026) - [Nodemailer quadratic DKIM header unfolding denial of service](https://junglewise.ai/threats/duplicate-advisory-nodemailer-quadratic-o-n-2-dkim-header-unfolding-a2b86ca5) (medium, CVSS 6.5, published 15 Oct 2026) - [CVE-2026-110872: Nodemailer SMTP parser denial of service](https://junglewise.ai/threats/cve-2026-110872-nodemailer-from-3-0-0-before-10-0-10-contains-a-quadratic) (medium, CVSS 5.9, published 14 Oct 2026) - [CVE-2026-110871: Nodemailer quadratic complexity in DKIM header unfolding](https://junglewise.ai/threats/cve-2026-110871-nodemailer-from-3-0-0-before-10-0-10-contains-a-denial-of) (medium, CVSS 6.5, published 14 Oct 2026) - [CVE-2026-110870: Nodemailer improper input validation in address parser](https://junglewise.ai/threats/cve-2026-110870-nodemailer-from-3-0-0-before-10-0-13-contains-an-improper-input) (medium, CVSS 5.3, published 14 Oct 2026) - [CVE-2026-110869: Nodemailer regular expression denial of service in SMTP AUTH detection](https://junglewise.ai/threats/cve-2026-110869-nodemailer-3-0-0-before-10-0-13-has-a-regular-expression-denial) (high, CVSS 7.5, published 14 Oct 2026) - [CVE-2026-100702: Nodemailer stack exhaustion in recipient array flattening](https://junglewise.ai/threats/cve-2026-100702-nodemailer-before-10-0-2-fails-to-properly-flatten-deeply-nested) (medium, CVSS 5.9, published 26 Sep 2026) - [CVE-2026-100701: Nodemailer TLS servername cache confusion vulnerability](https://junglewise.ai/threats/cve-2026-100701-nodemailer-versions-5-0-0-through-10-0-1-use-a-process-global) (medium, CVSS 5.9, published 26 Sep 2026) - [CVE-2026-100700: nodemailer addressparser regular expression denial of service](https://junglewise.ai/threats/cve-2026-100700-nodemailer-before-10-0-6-contains-a-denial-of-service) (high, CVSS 7.5, published 26 Sep 2026) - [CVE-2026-92598: Nodemailer IDN/Punycode domain allow-list bypass](https://junglewise.ai/threats/cve-2026-92598-nodemailer-idn-punycode-domain-allow-list-bypass) (medium, CVSS 6.5, published 16 Sep 2026) - [CVE-2026-92597: Nodemailer recipient-domain validation bypass via RFC 5322 comment misparse](https://junglewise.ai/threats/cve-2026-92597-nodemailer-recipient-domain-validation-bypass-via-rfc-5322) (medium, CVSS 6.5, published 16 Sep 2026) - [CVE-2026-92596: Nodemailer quadratic time complexity in address parser denial of service](https://junglewise.ai/threats/cve-2026-92596-nodemailer-quadratic-time-complexity-in-address-parser-denial-of) (high, CVSS 7.5, published 16 Sep 2026) - [CVE-2026-92595: Nodemailer resolveContent legacy signature security sandbox bypass](https://junglewise.ai/threats/cve-2026-92595-nodemailer-resolvecontent-legacy-signature-security-sandbox) (medium, CVSS 5.9, published 16 Sep 2026) - [Nodemailer addressparser O(n²) complexity denial of service](https://junglewise.ai/threats/duplicate-advisory-nodemailer-addressparser-o-n-2-on-comment-joined-7e26ae29) (high, CVSS 7.5, published 13 Sep 2026) - [CVE-2026-90776: Nodemailer quadratic time complexity in address parser](https://junglewise.ai/threats/cve-2026-90776-nodemailer-quadratic-time-complexity-in-address-parser) (high, CVSS 7.5, published 13 Sep 2026) - [Nodemailer raw message option bypasses disableFileAccess/disableUrlAccess](https://junglewise.ai/threats/nodemailer-raw-message-option-bypasses-disablefileaccess-fb6da12e) (high, CVSS 7.1, published 31 Aug 2026) - [CVE-2026-82854: Nodemailer SMTP command injection via envelope.size parameter](https://junglewise.ai/threats/cve-2026-82854-nodemailer-smtp-command-injection-via-envelope-size-parameter) (critical, CVSS 9.8, published 31 Aug 2026) - [CVE-2026-82853: Nodemailer SMTP command injection via CRLF in transport name](https://junglewise.ai/threats/cve-2026-82853-nodemailer-smtp-command-injection-via-crlf-in-transport-name) (medium, CVSS 4.9, published 31 Aug 2026) - [CVE-2026-82662: Nodemailer improper TLS certificate validation in OAuth2 token fetch](https://junglewise.ai/threats/cve-2026-82662-nodemailer-improper-tls-certificate-validation-in-oauth2-token) (medium, CVSS 6.5, published 31 Aug 2026) - [CVE-2026-82661: Nodemailer CRLF injection in List-* header comments](https://junglewise.ai/threats/cve-2026-82661-nodemailer-crlf-injection-in-list-header-comments) (medium, CVSS 5.4, published 31 Aug 2026) - [CVE-2026-82660: Nodemailer jsonTransport security control bypass in content resolution](https://junglewise.ai/threats/cve-2026-82660-nodemailer-jsontransport-security-control-bypass-in-content) (medium, CVSS 5.4, published 31 Aug 2026) ## Most severe Nodemailer vulnerabilities - [CVE-2026-82854: Nodemailer SMTP command injection via envelope.size parameter](https://junglewise.ai/threats/cve-2026-82854-nodemailer-smtp-command-injection-via-envelope-size-parameter) (critical, CVSS 9.8, published 31 Aug 2026) - [CVE-2026-92596: Nodemailer quadratic time complexity in address parser denial of service](https://junglewise.ai/threats/cve-2026-92596-nodemailer-quadratic-time-complexity-in-address-parser-denial-of) (high, CVSS 7.5, published 16 Sep 2026) - [CVE-2026-90776: Nodemailer quadratic time complexity in address parser](https://junglewise.ai/threats/cve-2026-90776-nodemailer-quadratic-time-complexity-in-address-parser) (high, CVSS 7.5, published 13 Sep 2026) - [CVE-2025-14874: Nodemailer addressparser denial of service via recursive calls](https://junglewise.ai/threats/cve-2025-14874-nodemailer-addressparser-denial-of-service-via-recursive-calls) (high, CVSS 7.5, published 18 Dec 2025) - [CVE-2025-13033: Nodemailer improper email parsing in addressparser](https://junglewise.ai/threats/cve-2025-13033-nodemailer-improper-email-parsing-in-addressparser) (high, CVSS 7.5, published 14 Nov 2025) - [CVE-2026-110869: Nodemailer regular expression denial of service in SMTP AUTH detection](https://junglewise.ai/threats/cve-2026-110869-nodemailer-3-0-0-before-10-0-13-has-a-regular-expression-denial) (high, CVSS 7.5, published 14 Oct 2026) - [CVE-2026-100700: nodemailer addressparser regular expression denial of service](https://junglewise.ai/threats/cve-2026-100700-nodemailer-before-10-0-6-contains-a-denial-of-service) (high, CVSS 7.5, published 26 Sep 2026) - [Nodemailer addressparser O(n²) complexity denial of service](https://junglewise.ai/threats/duplicate-advisory-nodemailer-addressparser-o-n-2-on-comment-joined-7e26ae29) (high, CVSS 7.5, published 13 Sep 2026) - [Nodemailer interpretation conflict in email address parsing](https://junglewise.ai/threats/nodemailer-interpretation-conflict-in-email-address-parsing-f348ebe8) (high, CVSS 7.5, published 14 Nov 2025) - [CVE-2026-82659: Nodemailer message-level raw option bypasses access controls](https://junglewise.ai/threats/cve-2026-82659-nodemailer-message-level-raw-option-bypasses-access-controls) (high, CVSS 7.1, published 31 Aug 2026) ## Vulnerabilities per week 9 vulnerabilities in the last four weeks, up 29% on the four before (7). | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 8 | 1 | 0 | | 7 Sep 2026 | 2 | 0 | 0 | | 14 Sep 2026 | 4 | 0 | 0 | | 21 Sep 2026 | 3 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 5 | 0 | 0 | | 19 Oct 2026 | 3 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 1 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Nodemailer vulnerabilities", https://junglewise.ai/threats/technologies/nodemailer, 10 November 2026.