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CVE-2026-66088

Unrestricted Command Execution via system.execute

CVSS score

9.4

EPSS probability

—

Risk score

0.9

Published

1 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

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Vulnerability description

DayBreach AI Explanation

Verified against sources

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

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

In openEQUELLA before 2026.1, the system.execute() function in the scripting engine runs operating system commands without validation. A user able to create or edit scripts can execute arbitrary commands with openEQUELLA service account privileges [S0].

Why does it matter?

This vulnerability allows a user with script creation or editing capabilities to execute commands with service account privileges, posing critical risks to system security [S0].

What should be done?

  • Follow the vendor advisory for updates [S0].
Chain of evidence and sources2 verified claims

openEQUELLA 2026.1 öncesi sürümler system.execute üzerinden komut çalıştırma açığından etkilenmektedir [S0].

S0 · daybreach-canonical

Yama durumu incelenen kaynaklarda UNKNOWN olarak değerlendirilmiştir [S0].

S0 · daybreach-canonical
Show the technical text from the sources

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 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

CWE: CWE-78, CWE-749

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-66088 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Apereo FoundationopenEQUELLA View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
9.4CVSS V4_0CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:LCVE CNA
9.4CVSS V40CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-66088 is associated with the following CWEs:

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')CWE-749: Common Weakness Enumeration Entry CWE-749

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-66088 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://github.com/openequella/openEQUELLA/security/advisories/GHSA-q8xp-w3fr-hj4vvendor-advisoryhttps://openequella.github.io/guides/vendor-advisory

CVSS Vector Radar Chart

9.4 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

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
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

AF
Apereo Foundation logo
Apereo Foundation

Weakness Type (CWE & CAPEC)

CWE-78 CWE-749

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CVE-2026-66088 · Unrestricted Command Execution via…