Critical 9.4Published Oct 28, 2026

CVE-2026-66088Unrestricted Command Execution via system.execute

Updated under an hour ago (Oct 29, 2026, 7:10 AM ET)

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It affects Apereo Foundation openEQUELLA. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Apereo Foundation openEQUELLA

Exploited in the last 30 days

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.

CVSS: 9.4 CRITICAL (v4.0, CNA)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
Weakness (CWE): CWE-78, CWE-749
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: MON-CSIRT
NVD analysis: Received
Record last updated: Oct 28, 2026
First seen by InfoSec Signals: Oct 28, 2026

Affected products

Affected products

Apereo Foundation openEQUELLA apereo_foundation:openequella (from the name)	before 2026.1	CNA record

References

References

https://github.com/openequella/openEQUELLA/security/advisories/GHSA-q8xp-w3fr-hj4v	vendor-advisory
https://openequella.github.io/guides/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.