CVE-2026-48930
criticalA 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.
Vendor / product: Nodejs — node.js
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**.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-06-26 02:16
Modified: 2026-10-25 22:10
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
nodejs / node.js 22.22.3, 24.16.0, 26.3.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://nodejs.org/en/blog/vulnerability/june-2026-security-releases
Patch / mitigation: https://nodejs.org/en/blog/vulnerability/june-2026-security-releases
References
- https://nodejs.org/en/blog/vulnerability/june-2026-security-releases support@hackerone.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗