Read the docs
TI-2026-82261 Aliases CVE-2026-66088GHSA-64mg-3wpj-rcr6

OS command injection in openEQUELLA via system.execute

Priority MEDIUM 44CWE-749Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

openEQUELLA before 2026.1 from Apereo Foundation lets a user who can create or edit scripts run arbitrary operating system commands. The system.execute() function available to the scripting engine runs supplied commands without validation or an allow-list of permitted executables, which is an OS command injection flaw (CWE-78). An authenticated remote attacker with low privileges can run commands with the privileges of the openEQUELLA service account.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00685 52nd percentileScored 2026-11-07
Fix Fixed openEQUELLA (Apereo Foundation): 2026.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Apereo FoundationopenEQUELLAbefore 2026.12026.1Patch availableCNA
  • openEQUELLA VendorApereo Foundation Affected before 2026.1 Fixed in 2026.1 Patch available CNA

Remediation

Upgrade openEQUELLA to version 2026.1, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA openEQUELLA (Apereo Foundation) Fixed in 2026.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apereo Foundation openEQUELLA 2026.1

    5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-82264 Unauthenticated access to user details in openEQUELLAPriority LOW 37
    • TI-2026-82263 XML external entity injection in openEQUELLA allows file readsPriority LOW 31
    • TI-2026-82262 XML external entity injection in openEQUELLA SOAP API lets attackers read filesPriority LOW 27
    Show all 5 records →

Timeline

  1. 2026-10-29 Threatist record created from CVE-2026-66088
  2. 2026-10-29 CISA SSVC decision points changed
  3. 2026-10-29 Alias added: GHSA-64mg-3wpj-rcr6

References

Advisory 1

Other 1

  • TI-2026-47769 openEQUELLA < 2026.1.0 Authenticated RCE via Java Deserialization in HTTP Invoker CVSS 4.0HIGH 8.7
  • TI-2026-82264 Unauthenticated access to user details in openEQUELLA CVSS 4.0MEDIUM 6.9
  • TI-2026-82263 XML external entity injection in openEQUELLA allows file reads CVSS 4.0HIGH 7.1
  • TI-2026-82262 XML external entity injection in openEQUELLA SOAP API lets attackers read files CVSS 4.0MEDIUM 6.1
  • TI-2026-82265 Stored XSS in openEQUELLA pre-login notice via legacy logon page CVSS 4.0MEDIUM 4.8
  • TI-2026-82260 Stored XSS via pre-login notice image upload in openEQUELLA CVSS 4.0MEDIUM 4.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences