Incorrect Authorization Affecting avo package, versions >=2.28.0, <3.32.0>=4.0.0.beta.1, <4.0.0.beta.41
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Incorrect Authorization vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-RUBY-AVO-17934625
- published10 Jul 2026
- disclosed9 Jul 2026
- creditUnknown
Introduced: 9 Jul 2026
NewCVE-2026-53769 (opens in a new tab)How to fix?
Upgrade avo to version 3.32.0, 4.0.0.beta.41 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization in the Avo::AttachmentsController#create process. An attacker can modify or replace attachment content, including binary data, filename, and content-type metadata, by directly accessing the upload endpoint and bypassing field-level and record-level authorization policies. This is only exploitable if the deployment allows authenticated users with restricted roles to access the upload endpoint while relying on per-record or per-field policies to restrict such actions.
Workaround
This vulnerability can be mitigated by overriding or monkey-patching the Avo::AttachmentsController#create process to enforce upload authorization before blob creation.