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, --deny-run, or --deny-ffi. On macOS, that comparison was done at the raw-byte level while the APFS filesystem treats different Unicode spellings of the same name as the same file. That means a program could reach a denied path by spelling it differently than the deny rule. This vulnerability is fixed in 2.7.14.

CVSS v3 7.3 HIGH

7.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 4.7

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

26 Jun 2026, 17:43

Type	Values Removed	Values Added
CPE		cpe:2.3:o:apple:macos:-:::::::* cpe:2.3:a:deno:deno::::::::
References	~~() https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9 -~~	() https://github.com/denoland/deno/security/advisories/GHSA-8xpq-cjcf-3wh9 - Exploit, Mitigation, Vendor Advisory
First Time		Deno Apple Apple macos Deno deno

23 Jun 2026, 18:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-23 18:18

Updated : 2026-06-26 17:43

NVD link : CVE-2026-49401

Mitre link : CVE-2026-49401

CVE.ORG link : CVE-2026-49401

JSON object : View

Products Affected

deno

deno

apple

macos

CWE

CWE-41

Improper Resolution of Path Equivalence

CWE-176

Improper Handling of Unicode Encoding

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