Cloudanix VulnDB

CVE-2026-32101

High · 7.6

CVSS

7.6

EPSS

0.3%

Published

Mar 11, 2026

CISA due date

—

The record

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.3.1, the S3 storage manager's isAuthorized() function is declared async (returns Promise<boolean>) but is called without await in both the POST and PUT handlers. Since a Promise object is always truthy in JavaScript, !isAuthorized(type) always evaluates to false, completely bypassing the authorization check. Any authenticated user with the lowest visitor role can upload, delete, rename, and list all files in the S3 bucket. This vulnerability is fixed in 0.3.1.

Affected packages

Ecosystem Package Introduced Fixed
npm @studiocms/s3-storage 0 0.3.1

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