CVE-2025-61786
LOWDeno < 2.2.15 and 2.3.0-2.5.2 - Permission Model Bypass via FsFile Stat Methods
Title source: llmDescription
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.
References (5)
Core 5
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/denoland/deno/security/advisories/GHSA-qq26-84mh-26j9
Issue Tracking, Patch x_refsource_misc
https://github.com/denoland/deno/pull/30876
Patch x_refsource_misc
https://github.com/denoland/deno/commit/1ab2268c0bcbf9b0468e0e36963f77f8c31c73ec
Release Notes x_refsource_misc
https://github.com/denoland/deno/releases/tag/v2.2.15
Release Notes x_refsource_misc
https://github.com/denoland/deno/releases/tag/v2.5.3
Scores
CVSS v3
3.3
EPSS
0.0018
EPSS Percentile
7.5%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-269
Status
published
Products (2)
crates.io/deno
0 - 2.5.3crates.io
deno/deno
< 2.2.15
Published
Oct 08, 2025
Tracked Since
Feb 18, 2026