Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. The Deno sandbox may be unexpectedly weakened by allowing file read/write access to privileged files in various locations on Unix and Windows platforms. For example, reading `/proc/self/environ` may provide access equivalent to `--allow-env`, and writing `/proc/self/mem` may provide access equivalent to `--allow-all`. Users who grant read and write access to the entire filesystem may not realize that these access to these files may have additional, unintended consequences. The documentation did not reflect that this practice should be undertaken to increase the strength of the security sandbox. Users who run code with `--allow-read` or `--allow-write` may unexpectedly end up granting additional permissions via file-system operations. Deno 1.43 and above require explicit `--allow-all` access to read or write `/etc`, `/dev` on unix platform (as well as `/proc` and `/sys` on linux platforms), and any path starting with `\\` on Windows.
History

Thu, 04 Sep 2025 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Deno
Deno deno
CPEs cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*
Vendors & Products Deno
Deno deno

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2024-08-02T02:51:11.237Z

Reserved: 2024-05-02T06:36:32.437Z

Link: CVE-2024-34346

cve-icon Vulnrichment

Updated: 2024-08-02T02:51:11.237Z

cve-icon NVD

Status : Analyzed

Published: 2024-05-07T21:15:09.270

Modified: 2025-09-04T19:23:06.737

Link: CVE-2024-34346

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.