CVE-2026-66090
Published:October 29, 2026
Updated:November 02, 2026
In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services.
Affected Packages
https://github.com/openequella/openEQUELLA.git (GITHUB):
Affected version(s) >=6.4-Alpha <2026.1.0 || >=2018.2-RC1 <2026.1.0 || >=2019.1-Stable <2026.1.0 || >=2020.1.0-RC1 <2026.1.0 || >=2021.1.0-RC1 <2026.1.0 || >=2022.1.0 <2026.1.0 || >=2023.1.0 <2026.1.0 || >=2024.1.0 <2026.1.0 || >=2025.1.0 <2026.1.0Fix Suggestion:
Update to version 2026.1.0Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Restriction of XML External Entity Reference
EPSS
Base Score:
0.27