Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to insecure action lookup logic, an authenticated user can execute any Action class (descendants of Avo::BaseAction) on any resource, even if the action is not registered for that specific resource. This leads to Privilege Escalation and unauthorized data manipulation across the entire application. This issue has been patched in version 3.31.2.

Project Subscriptions

Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-qc5p-3mg5-9fh8 Avo: Broken Access Control Through Unauthorized Execution of Arbitrary Action Classes Across Resources
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 12 May 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 May 2026 23:30:00 +0000

Type Values Removed Values Added
First Time appeared Avo Hq
Avo Hq avo
Vendors & Products Avo Hq
Avo Hq avo

Fri, 08 May 2026 21:45:00 +0000

Type Values Removed Values Added
Description Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.31.2, a broken access control vulnerability was identified in the ActionsController of the Avo framework. Due to insecure action lookup logic, an authenticated user can execute any Action class (descendants of Avo::BaseAction) on any resource, even if the action is not registered for that specific resource. This leads to Privilege Escalation and unauthorized data manipulation across the entire application. This issue has been patched in version 3.31.2.
Title Avo: Broken Access Control: Unauthorized Execution of Arbitrary Action Classes Across Resources
Weaknesses CWE-284
CWE-639
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-05-12T18:31:59.049Z

Reserved: 2026-04-25T05:04:37.027Z

Link: CVE-2026-42205

cve-icon Vulnrichment

Updated: 2026-05-12T12:52:26.290Z

cve-icon NVD

Status : Deferred

Published: 2026-05-08T22:16:31.820

Modified: 2026-05-12T19:16:32.450

Link: CVE-2026-42205

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T23:15:20Z

Weaknesses