CVE-2026-21712
5.7
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| nodejs | node | 24.14.0 <= 24.14.0 | affected |
| nodejs | node | 25.8.1 <= 25.8.1 | affected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://nodejs.org/en/blog/vulnerability/march-2026-security-releases
- https://hackerone.com/reports/3546390
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