All vulnerabilities
CVE-2026-66089GHSA-f9wv-5rpf-rq45

openEQUELLA: XML External Entity (XXE) Vulnerability in SOAP Interface Allows External Entity Expansion

Apereo Foundation openEQUELLA
Open in ThreatlineRecord JSON
CVSS
6.1Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in2026.1Fixed versionCVE List
Published29 Oct 2026Updated 29 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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).

Text from CVE List

Affected versions 2

  • openEQUELLAaffected: all versions before 2026.1CVE List
  • openEQUELLAunaffected: 2026.1 through 2026.2CVE List

References 2