Remote Code Execution in openEQUELLA by Apereo Foundation
CVE-2026-66088

9.4CRITICAL

Key Information:

Vendor

Apereo Foundation

Status
Openequella
Vendor
CVE Published:
29 October 2026

What is CVE-2026-66088?

The openEQUELLA platform, prior to version 2026.1, contains a significant vulnerability in its scripting engine where the system.execute() function indiscriminately executes supplied operating system commands. This flaw allows users with script creation or editing capabilities to run arbitrary commands, potentially leading to unauthorized access and control over the system. The absence of validation and an allow-list for permitted executables exacerbates the risk, enabling malicious actors to exploit the service account's privileges.

Affected Version(s)

openEQUELLA 0 < 2026.1

References

https://github.com/openequella/openEQUELLA/security/advis...
vendor-advisory
https://openequella.github.io/guides/
product

CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

jellyjelly
.