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SCA: security update for avo (GHSA-8fq9-273g-6mrg)

critical Tenable Self-Hosted Container Security Plugin ID 444853

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo's
 association attach workflow checks attach_<association>? in the UI and GET
 /resources/:resource/:id/:related/new path, but the actual write endpoint, POST
 /resources/:resource/:id/:related, does not run the same authorization check before mutating the
 association through Avo::AssociationsController#create. An authenticated low-privileged Avo user can
 bypass hidden or disabled attach controls and directly attach related records to a parent record by
 sending a crafted POST request, which can lead to privilege escalation and cross-tenant data exposure
 where associations represent authorization-bearing relationships. This issue is fixed in versions 3.32.1
 and 4.0.0.beta.51. (CVE-2026-55518)

Solution

Update the avo library and its related packages to version 3.32.1 or later.

See Also

https://github.com/advisories/GHSA-8fq9-273g-6mrg

Plugin Details

Severity: Critical

ID: 444853

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 7/18/2026

Updated: 7/18/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.8

Percentile: 57.69

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:N

CVSS Score Source: CVE-2026-55518

CVSS v3

Risk Factor: Critical

Base Score: 9.6

Temporal Score: 8.3

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2026

Vulnerability Publication Date: 6/17/2026

Reference Information

CVE: CVE-2026-55518