nodemailer has 39 CVEs on record between 2025 and 2026. Disclosure cadence is accelerating: 34 in the last 90 days against 4 in the 90 before. The busiest recent month was September 2026 with 19. The median CVSS is 6.5 (medium), with 1 rated critical. None have a confirmed exploitation report. The dominant weakness classes are CWE-20 (9) and CWE-436 (9).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 6.5
- Publish → KEV
- —
- Last 90 days
- 34 prev 4
Weakness classes
Products
- nodemailer 39
Worst active — by depth score
CVE-2026-82854Critical· 9.8Nodemailer before 8.0.4 is vulnerable to SMTP command injection through the unsanitized envelope.size parameter54CVE-2026-110869High· 7.5Nodemailer 3.0.0 before 10.0.13 has a regular expression denial of service in SMTPConnection._actionEHLO, whose four AUTH mechanism detection regexes contain overlapping whitespace sub-patterns that backtrack quadratically53CVE-2026-100700High· 7.5nodemailer before 10.0.6 contains a denial of service vulnerability in the addressparser free-text fallback regex pattern that exhibits quadratic backtracking behavior53CVE-2026-92596High· 7.5Nodemailer before 9.1.0 contains a quadratic time complexity vulnerability in the addressparser component that allows remote attackers to cause denial of service by supplying a crafted comma-separated address list53CVE-2026-90776High· 7.5Nodemailer versions 9.1.0 through 10.0.4 contain a quadratic time complexity vulnerability in the addressparser component when parsing email addresses with RFC 5322 comments53
nodemailer vulnerabilities
CVEs affecting nodemailer, newest first. Open any entry for full detail, references, and exploit status.
39 CVEsRSS
GHSA-frj6-5rhh-vwfwHigh· 6.5Duplicate Advisory: Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception
Duplicate Advisory: Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception
CVE-2026-82662Medium· 6.5PoCNodemailer before 8.0.8 disables TLS certificate verification in lib/fetch/index.js through rejectUnauthorized: false, allowing attackers to intercept OAuth2 token requests
Nodemailer before 8.0.8 disables TLS certificate verification in lib/fetch/index.js through rejectUnauthorized: false, allowing attackers to intercept OAuth2 token requests. Attackers in a machine-in-the-middle position can capture OAuth…
CVE-2026-82661Medium· 5.4PoCNodemailer before 8.0.9 fails to sanitize carriage return and line feed characters in list comment fields, allowing attackers to inject arbitrary message headers
Nodemailer before 8.0.9 fails to sanitize carriage return and line feed characters in list comment fields, allowing attackers to inject arbitrary message headers. An attacker with control over list.*.comment parameters can inject CRLF se…
CVE-2026-82854Critical· 9.8⚖ disputedNodemailer before 8.0.4 is vulnerable to SMTP command injection through the unsanitized envelope.size parameter
Nodemailer before 8.0.4 is vulnerable to SMTP command injection through the unsanitized envelope.size parameter. When an application passes a custom envelope object with a size property containing CRLF characters to sendMail(), the value…
GHSA-p6gq-j5cr-w38fHigh· 7.1Nodemailer: Message-level raw option bypasses disableFileAccess/disableUrlAccess, enabling arbitrary file read and full-response SSRF in the delivered message
Nodemailer: Message-level raw option bypasses disableFileAccess/disableUrlAccess, enabling arbitrary file read and full-response SSRF in the delivered message
GHSA-r7g4-qg5f-qqm2Medium· 6.5Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception
Nodemailer: Improper TLS Certificate Validation in OAuth2 Token Fetch Enables Credential Interception
GHSA-wqvq-jvpq-h66fMedium· 5.4Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess during message normalization
Nodemailer jsonTransport bypasses disableFileAccess and disableUrlAccess during message normalization
GHSA-268h-hp4c-crq3Medium· 5.4Nodemailer: CRLF injection in Nodemailer List-* header comments allows arbitrary message header injection
Nodemailer: CRLF injection in Nodemailer List-* header comments allows arbitrary message header injection
CVE-2025-14874High· 7.5PoCA flaw was found in Nodemailer
A flaw was found in Nodemailer. This vulnerability allows a denial of service (DoS) via a crafted email address header that triggers infinite recursion in the address parser.