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CVE-2025-61786

3.3 · LOW

Deno is a JavaScript, TypeScript, and WebAssembly runtime.

Published Oct 8, 2025CWE-269EPSS 0.19%

Overview

CVE-2025-61786 is a low-severity vulnerability. It was published on October 8, 2025 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/denoland/deno/commit/1ab2268c0bcbf9b0468e0e36963f77f8c31c73ecGitHubgithub.com/denoland/deno/pull/30876GitHubgithub.com/denoland/deno/releases/tag/v2.2.15GitHubgithub.com/denoland/deno/releases/tag/v2.5.3GitHubgithub.com/denoland/deno/security/advisories/GHSA-qq26-84mh-26j9

How CyberStrike helps

Frequently asked questions

What is CVE-2025-61786?

CVE-2025-61786 is a low-severity vulnerability. It was published on October 8, 2025 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2025-61786?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-61786?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-61786?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-61786 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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