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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Nodemailer Nodemailer
cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:*
|
9.1.0
|
10.0.5
|
References 6
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-prgh-xp8r-p3m5
GitHub Security Advisory (GHSA-prgh-xp8r-p3m5)
https://github.com/nodemailer/nodemailer/commit/c07f17518d25aca8ab2ad66968dcbca…
Patch Commit
https://github.com/nodemailer/nodemailer/blob/v10.0.4/src/addressparser/index.t…
Vulnerable join check in addressparser at v10.0.4
https://github.com/nodemailer/nodemailer/releases/tag/v10.0.5
nodemailer v10.0.5 Release Notes
https://github.com/nodemailer/nodemailer
NVD
https://www.vulncheck.com/advisories/nodemailer-9.1.0-through-10.0.4-denial-of-…
VulnCheck Advisory: Nodemailer 9.1.0 through 10.0.4 Denial of Service via Quadratic Address Parsing