VYPR
Low severityNVD Advisory· Published Oct 8, 2025· Updated Oct 8, 2025

Deno's --deny-read check does not prevent permission bypass

CVE-2025-61786

Description

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.

AI Insight

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
denocrates.io
< 2.5.32.5.3

Affected products

2

Patches

Vulnerability mechanics

References

7

News mentions

0

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CVE-2025-61786 · low · VYPR