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.
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Affected Vendors & Products
References
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 |

Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2024-08-02T02:51:11.237Z
Reserved: 2024-05-02T06:36:32.437Z
Link: CVE-2024-34346

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

Status : Analyzed
Published: 2024-05-07T21:15:09.270
Modified: 2025-09-04T19:23:06.737
Link: CVE-2024-34346

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