CVE-2025-61786CWE-269privilege-escalation

CVE-2025-61786

Low · published October 8, 2025

CVSS v3.1
3.3
EPSS
0%
Percentile
8.7
In the wild
Unconfirmed
What it is

Deno is a JavaScript, TypeScript, and WebAssembly runtime. In versions prior to 2.5.3 and 2.2.15, `Deno.FsFile.prototype.stat` and `Deno.FsFile.prototype.statSync` are not limited by the permission model check `--deny-read=./`. It's possible to retrieve stats from files that the user do not have explicit read access to (the script is executed with `--deny-read=./`). Similar APIs like `Deno.stat` and `Deno.statSync` require `allow-read` permission, however, when a file is opened, even with file-write only flags and deny-read permission, it's still possible to retrieve file stats, and thus bypass the permission model. Versions 2.5.3 and 2.2.15 fix the issue.

The record
Technical detail
CVSS v3.1
3.3 · LOW
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00195 · 8.7th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2025-10-08T05:15Z
Affected products (2)
ProductVersionsFixed in
deno/deno≤ 2.2.15—
deno/deno≥ 2.3.0, < 2.5.32.5.3
References (5)
EPSS history
Timeline
  • 08 OCT 00:49Z
    Deno's --deny-read check does not prevent permission bypass
    cvelistv5