Bug 2559946 - CVE-2026-105483 nodejs24: nodejs: TLS certificate hostname bypass via fullwidth-digit IP hostnames [fedora-43]
Summary: CVE-2026-105483 nodejs24: nodejs: TLS certificate hostname bypass via fullwid...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: nodejs24
Version: 43
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Jan Staněk
QA Contact:
URL:
Whiteboard: {"flaws": ["b6480eae-54a1-4bc0-9868-c...
Depends On:
Blocks: CVE-2026-105483
TreeView+ depends on / blocked
 
Reported: 2026-10-23 15:38 UTC by Srikanth Balasubramanian
Modified: 2026-10-23 15:38 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Srikanth Balasubramanian 2026-10-23 15:38:33 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A flaw was found in Node.js. A regression in TLS IP hostname normalization allows a host written with fullwidth Unicode digits to bypass certificate hostname verification in checkServerIdentity. A TLS client can be made to accept a certificate that does not properly identify the requested IP address when connecting with such a hostname, enabling server impersonation.


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