CVE-2026-49411
- Source
- https://cve.org/CVERecord?id=CVE-2026-49411
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49411.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-49411
- Aliases
- Published
- 2026-06-23T17:18:07Z
- Modified
- 2026-10-24T10:30:34Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- Deno Node TCPWrap numeric hostname aliases bypass --deny-net resolved-IP deny checks
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-284" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49411.json" }- References
Affected packages
Git / github.com/denoland/deno
Affected ranges
- Type
- GIT
- Repo
- https://github.com/denoland/deno
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "2.8.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "cpe": "cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*", "range": [ { "introduced": "2.7.14" }, { "fixed": "2.8.0" } ], "source": "CPE_RANGE" } ] }