CVE & CISA-KEV Catalog

CVE-2026-48618

MEDIUM
6.5
CVSS v3
NVD

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**.

CWE-176

How to fix

Remediation Available
nodejsDebian
Fixed in:24.17.0+dfsg+~cs24.13.2-1CVE-2026-48618
nodejs22Red Hat / RHEL
Fixed in:main@noarchRHSA-2026:28727
Fixed in:main@aarch64RHSA-2026:28727
Fixed in:main@srcRHSA-2026:28727
Fixed in:main@x86_64RHSA-2026:28727
nodejs22Rocky
Fixed in:main@aarch64RHSA-2026:28727
Fixed in:main@srcRHSA-2026:28727
Fixed in:main@x86_64RHSA-2026:28727
Fixed in:main@noarchRHSA-2026:28727
nodejs24Red Hat / RHEL
Fixed in:main@srcRHSA-2026:29012
Fixed in:main@x86_64RHSA-2026:29012
Fixed in:main@noarchRHSA-2026:29012
Fixed in:main@aarch64RHSA-2026:29012
nodejs24Rocky
Fixed in:main@aarch64RHSA-2026:29012
Fixed in:main@srcRHSA-2026:29012
Fixed in:main@x86_64RHSA-2026:29012
Fixed in:main@noarchRHSA-2026:29012
nodejs26Rocky
Fixed in:main@noarchRHSA-2026:30172
Fixed in:main@aarch64RHSA-2026:30172
Fixed in:main@srcRHSA-2026:30172
Fixed in:main@x86_64RHSA-2026:30172
nodejs26Red Hat / RHEL
Fixed in:main@srcRHSA-2026:30172
Fixed in:main@x86_64RHSA-2026:30172
Fixed in:main@aarch64RHSA-2026:30172
Fixed in:main@noarchRHSA-2026:30172

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.61%probability of exploitation in 30 days
45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Embed a live status badge for CVE-2026-48618
CVE-2026-48618 severity badge

Markdown

[![CVE-2026-48618](https://tridentstack.com/cve/badge/CVE-2026-48618.svg)](https://tridentstack.com/cve/CVE-2026-48618)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-48618"><img src="https://tridentstack.com/cve/badge/CVE-2026-48618.svg" alt="CVE-2026-48618"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-26.