Is CVE-2026-48928 in the CISA KEV catalog?

No. CVE-2026-48928 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-48928?

CVE-2026-48928 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2026-48928?

CVE-2026-48928 has an EPSS score of 0.25% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48928?

Upgrade nodejs on debian unstable to 24.17.0+dfsg+~cs24.13.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-48928

MEDIUM

5.4

CVSS v3

NVD

Description

A inconsistency in Node.js hostname matching can cause a trust-policy bypass in multi-context mTLS setups. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

CWE-284Improper Access Control

How to fix

Remediation Available

nodejsDebian

Fixed in:24.17.0+dfsg+~cs24.13.2-1CVE-2026-48928

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

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Patch1

nodejs.org

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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.