CVE-2026-48618

Summary

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.

Affected Software

VendorProductVersion RangeStatus
nodejsnode22.22.3 <= 22.22.3affected
nodejsnode24.16.0 <= 24.16.0affected
nodejsnode26.3.0 <= 26.3.0affected

Weaknesses

  • CWE-176: CWE-176 Improper Handling of Unicode Encoding

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References