CVE-2025-61785

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
08/10/2025
Last modified:
16/10/2025

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. In versions prior to 2.5.3 and 2.2.15, `Deno.FsFile.prototype.utime` and `Deno.FsFile.prototype.utimeSync` are not limited by the permission model check `--deny-write=./`. It's possible to change to change the access (`atime`) and modification (`mtime`) times on the file stream resource even when the file is opened with `read` only permission (and `write`: `false`) and file write operations are not allowed (the script is executed with `--deny-write=./`). Similar APIs like `Deno.utime` and `Deno.utimeSync` require `allow-write` permission, however, when a file is opened, even with read only flags and deny-write permission, it's still possible to change the access (`atime`) and modification (`mtime`) times, and thus bypass the permission model. Versions 2.5.3 and 2.2.15 fix the issue.

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:* 2.2.15 (including)
cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:* 2.3.0 (including) 2.5.3 (excluding)