CVE-2026-21712
Published: March 26, 2026Last modified: March 28, 2026
Description
A flaw in Node.js URL processing causes an assertion failure in native code when `url.format()` is called with a malformed internationalized domain name (IDN) containing invalid characters, crashing the Node.js process.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.7 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | nodejs | Not affected (18.16.0-r0) |
| 25 LTS | nodejs | Not affected (22.16.0-r1) | |
| Stream | nodejs | Fixed (24.14.1-r0) | |
| Hardened Containers | 23 LTS | nodejs | Not affected (18.16.0-r0) |
| 25 LTS | nodejs | Not affected (22.16.0-r1) | |
| Stream | nodejs | Fixed (24.14.1-r0) |