MEDIUM
CVE-2026-48618
CVSS
6.5
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**.
Weakness (CWE)
CWE-176
CWE-289
EPSS Score
3.23%
Probability of exploitation in next 30 days
87.7th percentile
References
https://nodejs.org/en/blog/vulnerability/june-2026-security-releases
Patch, Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:28727
https://access.redhat.com/errata/RHSA-2026:29012
https://access.redhat.com/errata/RHSA-2026:30172
https://access.redhat.com/errata/RHSA-2026:35841
https://access.redhat.com/errata/RHSA-2026:35842
https://access.redhat.com/errata/RHSA-2026:35891
https://access.redhat.com/errata/RHSA-2026:35892
https://access.redhat.com/errata/RHSA-2026:39246
https://access.redhat.com/errata/RHSA-2026:39868
https://access.redhat.com/errata/RHSA-2026:41947
https://access.redhat.com/errata/RHSA-2026:52399
https://access.redhat.com/errata/RHSA-2026:7378
https://access.redhat.com/errata/RHSA-2026:9455
https://access.redhat.com/security/cve/CVE-2026-48618
https://bugzilla.redhat.com/show_bug.cgi?id=2493337
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48618.json
Base CVE data derived from NVD (public domain). Enrichment by
dbcve.org
(CC-BY-4.0). Fetched via API.