CVEvulnerability
CVE-2026-90776
8.7 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-13
- Last modified
- 2026-09-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.7 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-407
Description
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 event loop for several seconds, causing denial of service.
Related
Weakness · CWE (1)
- CWE-407 Inefficient Algorithmic Complexity weakness
References
- https://github.com/nodemailer/nodemailer github.com
- https://github.com/nodemailer/nodemailer/blob/v10.0.4/src/addressparser/index.ts#L251 github.com
- https://github.com/nodemailer/nodemailer/commit/c07f17518d25aca8ab2ad66968dcbca538c24b89 github.com
- https://github.com/nodemailer/nodemailer/releases/tag/v10.0.5 github.com
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-prgh-xp8r-p3m5 github.com
- https://www.vulncheck.com/advisories/nodemailer-9.1.0-through-10.0.4-denial-of-service-via-quadratic-address-parsing www.vulncheck.com
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-prgh-xp8r-p3m5 github.com