CVE-2026-66088: critical vulnerability in Apereo Foundation openEQUELLA
Unrestricted Command Execution via system.execute
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.4epss 0.7%
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L
Affected products
Apereo Foundation · openEQUELLARelated CVEs — Apereo Foundation openEQUELLA
In the same product, most dangerous first.
CVE-2026-67615HIGHopenEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP InvokerEPSS 0.5%CVE-2026-66091MEDIUMUnauthenticated IDOR Enables Disclosure of Other Users’ last-known detailsEPSS 0.4%CVE-2026-66092MEDIUMStored XSS in pre-login notice via reachable legacy logon routeEPSS 0.3%CVE-2026-16889MEDIUMStored XSS via Pre-Login Notice Image Upload Serves Attacker HTML from Application OriginEPSS 0.3%CVE-2026-66090HIGHXML External Entity (XXE) Injection in Metadata Field Allows Arbitrary File ReadEPSS 0.3%CVE-2026-66089MEDIUMXML External Entity (XXE) Vulnerability in SOAP Interface Allows External Entity ExpansionEPSS 0.3%