---
id: CVE-2026-66088
title: Unrestricted Command Execution via system.execute
summary: >-
  In openEQUELLA before 2026.1, the system.execute() function available to the
  scripting engine runs supplied operating system commands without validation or
  an allow-list of permitted executables. A user able to create or edit scripts
  can…
severity: critical
cvss: 9.4
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L'
cvssSource: cna
cwe:
  - CWE-78
  - CWE-749
vendor: Apereo Foundation
product: openEQUELLA
affected:
  - openEQUELLA < 2026.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-29T01:50:52.370616Z'
published: '2026-10-29'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T02:02:13.562Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-66088'
references:
  - url: >-
      https://github.com/openequella/openEQUELLA/security/advisories/GHSA-q8xp-w3fr-hj4v
  - url: 'https://openequella.github.io/guides/'
tags:
  - cve.org
epss: 0.00685
epssPercentile: 0.52579
ingestedAt: '2026-10-31T01:14:13.032Z'
---

## Overview

In openEQUELLA before 2026.1, the system.execute() function available to the scripting engine runs supplied operating system commands without validation or an allow-list of permitted executables. A user able to create or edit scripts can use it to execute arbitrary commands with the privileges of the openEQUELLA service account.

## Affected

- `openEQUELLA < 2026.1`

## Remediation

Upgrade to vendor recommended versions