CVE-2026-48618: A flaw in Node.js TLS hostname handling can cause Node.js unicode dot separator handling can lead to tls wildcard-depth …
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**.
- Published by source
- 2026-06-26
- First seen by Reality Radar
- 2026-10-26
- Last verified
- 2026-10-26
Affected
- Manufacturer
- nodejs
- Products
- node.js
- Versions
- 22.22.3 24.16.0 26.3.0
- CPE
- cpe:2.3:a:nodejs:node.js:22.22.3:*:*:*:-:*:*:*
cpe:2.3:a:nodejs:node.js:24.16.0:*:*:*:-:*:*:*
cpe:2.3:a:nodejs:node.js:26.3.0:*:*:*:-:*:*:*
Whether your exact unit is affected depends on the model, serial number and region in the official notice.
What the official notice says
Risk: CVSS 7.7
Is this affecting you?
Add what you own or use and Reality Radar will tell you when official changes match it — with evidence and next steps.
Sources
- NIST National Vulnerability Database Tier A · official published 2026-06-26
Evidence ledger
Every piece of evidence we store is appended to a public hash chain, so later edits are detectable. Anyone can re-verify it.
| Entry | Kind | Observed | Evidence hash | Entry hash |
|---|---|---|---|---|
| #1748 | new | 2026-10-26 | 77b969dafe2f…e8225f | 5283e8d207c3…dca2e6 |
Chain head: #1771 9d8a5938d304…171807