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nodejs

A vulnerability in the Node.js Permission API allows a local server to be started via a Unix domain socket even when the --allow-net permission is not granted. This flaw affects Node.js version 26.3.0 and certain Ubuntu package versions. The issue was fixed in Node.js version 26.3.1. The severity is considered low to medium with no known exploits in the wild.

CVE-2026-48936 is a vulnerability in the Node.js Permission API that permits starting a local server through a Unix domain socket without requiring the --allow-net permission. This bypass of expected permission restrictions could allow limited unauthorized local network operations. The flaw affects Node.js version 26.3.0 and specific Ubuntu package versions listed. The issue was addressed and fixed in Node.js version 26.3.1.

Detailed information about A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the --allow-net perm

A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the --allow-net permission. (CVE-2026-48936) - Live Threat Intelligence - Threat Radar | OffSeq.com

Nodejs: A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the --allow-net permission. (CVE-2026-48936)

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