CVE-2026-90776

Nodemailer 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 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js...

CVE-2026-90776

A flaw was found in Nodemailer's addressparser component. A remote attacker can exploit this by crafting malicious email headers containing specially formatted comments. This can lead to excessive CPU consumption and block the Node.js event loop, resulting in a denial of service for the...

CVE-2026-90776

Nodemailer versions 9.1.0 through 10.0.4 are affected by a quadratic time complexity flaw in the addressparser component. When parsing email addresses containing RFC 5322 comments (comment-separated atoms), the parser consumes excessive CPU and blocks the Node.js event loop for several seconds, r...

CVE-2026-90776 Nodemailer 9.1.0 through 10.0.4 Denial of Service via Quadratic Address Parsing

Nodemailer 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 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js...

EUVD-2026-77000

Nodemailer 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 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js...

PT-2026-90847

Nodemailer 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 comments. Attackers can craft malicious email headers with comment-separated atoms to consume excessive CPU and block the Node.js...

Linux Distros Unpatched Vulnerability : CVE-2026-90776

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Nodemailer versions 9.1.0 through 10.0.4 contain a quadratic time complexity vulnerability in the addressparser component when parsing email addresses with RFC...

Nodemailer: Quadratic (O(n²)) time complexity in addressparser allows remote denial of service via a crafted address list

Summary Nodemailer's address parser lib/addressparser/index.js parses a list of comma‑separated addresses in quadratic time — On² in the number of addresses. A single crafted address string e.g. a To, Cc, Bcc, From, or Reply‑To value, or any value passed to the exported addressparser therefore...

Uncontrolled Recursion

Overview org.webjars.npm:nodemailer is an Easy as cake e-mail sending from your Node.js applications Affected versions of this package are vulnerable to Uncontrolled Recursion in the addressparser function. An attacker can cause the process to terminate immediately by sending an email address...

Nodemailer’s addressparser is vulnerable to DoS caused by recursive calls

Summary A DoS can occur that immediately halts the system due to the use of an unsafe function. Details According to RFC 5322, nested group structures a group inside another group are not allowed. Therefore, in lib/addressparser/index.js, the email address parser performs flattening when nested...

Uncontrolled Recursion

Overview nodemailer is an Easy as cake e-mail sending from your Node.js applications Affected versions of this package are vulnerable to Uncontrolled Recursion in the addressparser function. An attacker can cause the process to terminate immediately by sending an email address header containing...

MAL-2022-537 Malicious code in @puresec/addressparser-malicious (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware f35f0d4232324d0184d75d7cfba054b0a74327c8351544f0540d29b6a894c6a9 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...