# CVE-2026-66089: openEQUELLA XML external entity injection in SOAP API

Source: https://junglewise.ai/threats/cve-2026-66089-in-openequella-before-2026-1-the-soap-api-parses-xml-supplied-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-29. Updated: 2026-10-29  
License: CC BY 4.0 with a link back

CVE-2026-66089 · Severity: info · Published 2026-10-29

openEQUELLA is a digital repository system used by educational and research institutions to manage learning resources. A flaw in its SOAP API allows attackers to read sensitive files on the server or trigger it to make unauthorized network requests by submitting specially crafted XML, potentially exposing confidential data or enabling further attacks.

Technologies: [openEQUELLA](https://junglewise.ai/threats/technologies/openequella). Vendors: [openEQUELLA](https://junglewise.ai/threats/vendors/openequella).

## Quick answers

**Is CVE-2026-66089 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-66089 being exploited in the wild.

**How severe is CVE-2026-66089?** Informational severity, published 29 October 2026.

**Which products and versions are affected?** openEQUELLA before 2026.1.

**Is there a fix for CVE-2026-66089?** Yes: fixed in 2026.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-66089 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-66089?** Check whether you run openEQUELLA at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2026.1

## Technical details

The SOAP API's stopEdit operation parses XML without disabling external entity resolution, enabling XXE (XML External Entity) injection. An unauthenticated attacker can exploit this to read arbitrary files accessible to the openEQUELLA service process or perform server-side request forgery (SSRF) by specifying attacker-controlled external entity definitions in the XML payload.

## Affected products

- openEQUELLA openEQUELLA before 2026.1

## Timeline

- 2026-10-29: disclosed

## References

- [https://github.com/openequella/openEQUELLA/security/advisories/GHSA-f9wv-5rpf-rq45](https://github.com/openequella/openEQUELLA/security/advisories/GHSA-f9wv-5rpf-rq45)
- [https://openequella.github.io/guides/](https://openequella.github.io/guides/)

## Related threats

- [openEQUELLA stored cross-site scripting in login notice](https://junglewise.ai/threats/cve-2026-66092-in-openequella-before-2026-2-the-pre-login-notice-is-stored-as)
- [openEQUELLA authentication bypass in user info endpoint](https://junglewise.ai/threats/cve-2026-66091-in-openequella-before-2026-1-the-get-api-userquery-userinfobackup)
- [openEQUELLA XXE in item metadata XML parser](https://junglewise.ai/threats/cve-2026-66090-in-openequella-before-2026-1-the-xml-parser-used-for-item)
- [openEQUELLA OS command injection in scripting engine](https://junglewise.ai/threats/cve-2026-66088-in-openequella-before-2026-1-the-system-execute-function)
- [openEQUELLA stored XSS in pre-login notice image upload](https://junglewise.ai/threats/cve-2026-16889-in-openequella-before-2026-1-the-pre-login-notice-image-upload)