CVE-2026-92596
Last modified
CVE-2026-92596 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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..
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| nodemailer | nodemailer | < 9.1.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-92596?
How severe is CVE-2026-92596?
How do I fix CVE-2026-92596?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-92590Craft CMS versions from 5.7.0 before 5.10.13 contain a store…5.4
- CVE-2026-92591Craft CMS 5.0.0 through 5.10.12 treats a database connection…5.9
- CVE-2026-92592Craft CMS 4.8.0 through 4.18.5 and 5.0.0 through 5.10.12 sig…8.8
- CVE-2026-92593Craft CMS versions 5.10.0 through 5.10.12 contain an incompl…8.8
- CVE-2026-92594Craft CMS 5.0.0-RC1 through versions before 5.11.0 incorrect…7.5
- CVE-2026-92595Nodemailer (npm package `nodemailer`) versions 9.1.0 and ear…5.9
- CVE-2026-92597Nodemailer versions >= 6.9.16 and < 9.1.0 mis-parse RFC 5322…6.5
- CVE-2026-92598Nodemailer before 9.1.0 fails to apply UTS-46 normalization …6.5
- CVE-2026-92599joi (npm package `joi`, hapi.js) versions >=17.2.0 <17.13.7 …7.5
- CVE-2026-9260Use of hard-coded cryptographic keys in Canon EOS Network Se…9.8
- CVE-2026-92600Guns through 8.3.5 contains an information disclosure vulner…6.5
- CVE-2026-92601Guns through 8.3.5 contains an improper access control vulne…6.5
Are you affected by CVE-2026-92596?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST