Description
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.8.1, when a WebSocket connection was opened, Deno checked the destination hostname against --deny-net rules but did not re-check the IP addresses that hostname resolved to. An attacker-controlled script could use a specially crafted domain name that passes the hostname check yet resolves to a denied IP, bypassing the network restriction entirely. This vulnerability is fixed in 2.8.1.
CVSS 5.2EPSS 0.101%Risque 0.52
Voir la source- Publication
- 2026-06-23 18:18:04
- Versions concernées
- <2.8.1
- Type
- Logiciel critique
- Vecteur
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N