CVE-2026-66089: XML External Entity (XXE) Vulnerability in SOAP Interface Allows External Entity Expansion
In openEQUELLA before 2026.1, the SOAP API parses XML supplied in the stopEdit operation with a parser that resolves external entities. This allows an attacker to read arbitrary files accessible to the openEQUELLA service or cause the server to issue requests to attacker-specified locations (SSRF).
Affected Software
Event History
Frequently Asked Questions
Which deployments are affected?
openEQUELLA versions before 2026.1 are affected when the SOAP API's stopEdit operation processes attacker-controlled XML.
What access does an attacker need to exploit this issue?
An attacker needs the ability to submit XML to the SOAP API stopEdit operation. The provided information does not specify any additional authentication or authorization requirements.
What could successful exploitation allow?
An attacker could read files that are accessible to the openEQUELLA service account or induce the server to make requests to attacker-specified locations.
How can I remediate the vulnerability?
Upgrade openEQUELLA to version 2026.1 or later.