CVE-2026-66088

Unrestricted Command Execution via system.execute

Published Oct 29, 2026 CVSS 4.0 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Upgrade to vendor recommended versions

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Apereo Foundation
Apereo Foundation openequella
Vendors & Products Apereo Foundation
Apereo Foundation openequella
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Unrestricted Command Execution via system.execute
Weaknesses CWE-749
CWE-78
References
Metrics cvssV4_0

{'score': 9.4, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
MON-CSIRT
Published
Updated
Oct 29, 2026, 2:02 AM
Reserved
Jul 24, 2026, 2:22 AM
Status
Deferred
Published
Oct 29, 2026, 2:16 AM
Modified
Oct 29, 2026, 3:56 PM