CVE-2026-48930

At a glance

Severity: MEDIUM 5.6
EPSS: EPSS 0.32 % · percentile 24 (2026-10-27)
State: PUBLISHED
Published: 2026-06-26
Updated: 2026-06-26
Assigner: hackerone
NVD status: Analyzed

Description

A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

Scores

Version	Score	Vector	Scored by
CVSS 3.0	MEDIUM 5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L	hackerone
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.0	MEDIUM 5.6	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L	NVD · support@hackerone.com (Secondary)

Weaknesses (CWE)

CWE-284

European references

ENISA EUVD · EUVD-2026-39614
GCVE · GCVE-0-2026-48930

CERT-FR advisories

CERTFR-2026-AVI-0786 — Multiples vulnérabilités dans Node.js · cert.ssi.gouv.fr

Affected configurations (NVD 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:*:*:*:-:*:*:*

Affected products

Product	Versions
nodejs · node	affected 22.22.3 ≤ 22.22.3 ; affected 24.16.0 ≤ 24.16.0 ; affected 26.3.0 ≤ 26.3.0

References

https://nodejs.org/en/blog/vulnerability/june-2026-security-releases

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD