CVE-2026-48618
Published: June 20, 2026Last modified: June 23, 2026
Description
A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth authentication bypass due to resolver and verifier hostname normalization mismat. This can lead to confidentiality impact or bypass of the intended security boundary under affected configurations. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | nodejs | Unknown (18.16.0-r0) |
| 25 LTS | nodejs | Fixed (22.23.0-r0) | |
| Stream | nodejs | Fixed (24.17.0-r0) | |
| Hardened Containers | 23 LTS | nodejs | Unknown (18.16.0-r0) |
| 25 LTS | nodejs | Fixed (22.23.0-r0) |