CVEvulnerability

CVE-2026-49411

6.5 MEDIUM Published 2026-06-23 Modified 2026-10-25 Official page ↗
Status
Modified
Published
2026-06-23
Last modified
2026-10-25
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weaknesses
CWE-284

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.8.0, the Node.js compatibility TCP path checked the permission against the original hostname string before resolution and then did not re-check after resolution. A caller could therefore pass a numeric alias of an IP address (for example the decimal integer 2130706433 or the hex form 0x7f000001, both of which resolve to 127.0.0.1) and reach the denied destination through node:net.connect or node:http.request's { host, port } options form. This vulnerability is fixed in 2.8.0.

Affected configurations

• deno deno (>= 2.7.14 < 2.8.0)

Related

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References