{"schemaVersion":3,"id":"CVE-2026-21636","aliases":["UBUNTU-CVE-2026-21636","CGA-25mv-wqj5-8r5h","CGA-2mj8-hhhr-v7wp","CGA-2r44-vqvm-32fw","CGA-6vpp-69jg-77v9","CGA-6wr2-9v35-gr72","CGA-f4g5-3qpj-jrr8","CGA-fxv3-j389-cv76","CGA-hjrg-gp6c-x636","CGA-hmhp-7frh-pq56","CGA-j59p-4xxx-crqg","CGA-pf49-7q6m-h95v","CGA-prqw-87g4-x7hf","CGA-vm8h-5mhp-56g7","CGA-xwwx-m6m2-fr43"],"status":"published","duplicateOf":null,"title":null,"description":"A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled. Even without `--allow-net`, attacker-controlled inputs (such as URLs or socketPath options) can connect to arbitrary local sockets via net, tls, or undici/fetch. 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