| Name | CVE-2026-92596 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| node-nodemailer (PTS) | bookworm | 6.8.0+~6.4.6-1 | vulnerable |
| trixie | 6.10.0+~6.4.17-1+deb13u1 | vulnerable | |
| forky | 10.0.0+~8.0.1-1 | fixed | |
| sid | 10.0.10+~8.0.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| node-nodemailer | source | (unstable) | 10.0.0+~8.0.1-1 |
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-2x7j-588g-ccc2
Fixed by: https://github.com/nodemailer/nodemailer/commit/9116da9528c6524cefaed75185602a7e85d20434 (v9.1.0)
Fixed by: https://github.com/nodemailer/nodemailer/commit/7cc38af418ffa6fc7e86085195ca5ca681694b3e (v9.1.0)
Fixed by: https://github.com/nodemailer/nodemailer/commit/34da64282dcdc9b0581c721a27ab2fa226673150 (v9.1.0)
Fixed by: https://github.com/nodemailer/nodemailer/commit/83b8c48cbdb8b3116f2e1ba84af755b2c5661c0f (v9.1.0)