CVE-2026-92596
Nodemailer before 9.1.0 Denial of Service via addressparser
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Description
Nodemailer 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 list. Attackers can send a single email with a large number of addresses to block the Node.js event loop for extended periods, consuming 100% CPU and freezing the process.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://github.com/nodemailer/nodemailer/security/advisories/GHSA-2x7j-588g-ccc2
- https://github.com/nodemailer/nodemailer/commit/9116da9
- https://github.com/nodemailer/nodemailer/commit/7cc38af
- https://github.com/nodemailer/nodemailer/commit/34da642
- https://github.com/nodemailer/nodemailer/commit/83b8c48
References (6)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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