What is CVE-2026-49401?

CVE-2026-49401 is a high-severity vulnerability in Denoland Deno, classified under CWE-41. CVSS score: 7.3/10. Published 2026-06-23.

How severe is CVE-2026-49401?

High severity. CVSS v3 base score is 7.3 out of 10.

Vulnerability in Denoland Deno

CVE-2026-49401

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.7.14, Deno's permission system enforces filesystem and execution restrictions by comparing the requested path against the path supplied to --deny-read, --deny-write, --d…

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N.

Affected products

Denoland Deno — versions < 2.7.14

Weakness classification (CWE)

CWE-41
CWE-176

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-49401?: CVE-2026-49401 is a high-severity vulnerability in Denoland Deno, classified under CWE-41. CVSS score: 7.3/10. Published 2026-06-23.
How severe is CVE-2026-49401?: High severity. CVSS v3 base score is 7.3 out of 10.