CVE-2026-66089

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

State: Published
Severity: 6.1 Medium
Published: Oct 29, 2026
Updated: Oct 29, 2026
Reserved: Jul 24, 2026

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).

Scores

CVSS	Score	Vector	Source
4.0	6.1 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:L/SI:N/SA:N	MON-CSIRT

Weaknesses

CWE-611 Improper restriction of XML external entity reference

Affected Products

Product	Versions
openEQUELLAApereo Foundation	before 2026.1Affected 2026.1 through 2026.2Not affected

References

https://github.com/openequella/openEQUELLA/security/advisories/GHSA-f9wv-5rpf-rq45vendor-advisory
https://openequella.github.io/guides/product

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