# CVE-2026-82386: Apache Roller XML external entity injection in bookmark import

Source: https://junglewise.ai/threats/cve-2026-82386-improper-restriction-of-xml-external-entity-reference-in-apache  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-82386 · Severity: high · CVSS 7.7 · Published 2026-09-28

Apache Roller is a blog publishing platform used by weblog administrators. An authenticated administrator can import a malicious OPML document that triggers XXE (XML External Entity) injection, allowing them to read files accessible to the Roller process and potentially reach internal network services. The vulnerability requires administrative access but no configuration changes, and is fixed in version 6.1.6.

Technologies: [Apache Roller](https://junglewise.ai/threats/technologies/roller). Vendors: [Apache](https://junglewise.ai/threats/vendors/apache).

## Quick answers

**Is CVE-2026-82386 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-82386 being exploited in the wild.

**How severe is CVE-2026-82386?** High severity, with a CVSS score of 7.7, published 28 September 2026.

**Which products and versions are affected?** Apache Roller 6.1.5 and earlier.

**Is there a fix for CVE-2026-82386?** A patch was published on 2026-09-28: Fixed in version 6.1.6 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-82386 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-82386?** Check whether you run Apache Roller 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.

## Technical details

The bookmark import parser in Apache Roller 6.1.5 does not disable XML external entity resolution when parsing OPML documents, enabling XXE attacks. An authenticated weblog administrator can exploit this via the bookmark-import action by uploading a crafted OPML file with DOCTYPE declarations and external entities to read local files or perform SSRF against internal systems. The fix in 6.1.6 uses a hardened JDOM SAXBuilder with external entities, DTD resolution, and document type declarations disabled.

## Affected products

- Apache Roller 6.1.5 and earlier

## Timeline

- 2026-09-28: disclosed
- 2026-09-28: patched: Fixed in version 6.1.6

## References

- [https://github.com/apache/roller/pull/173](https://github.com/apache/roller/pull/173)
- [https://lists.apache.org/thread/mrtstv8odj7l9mcrto445lftrcpw0sxl](https://lists.apache.org/thread/mrtstv8odj7l9mcrto445lftrcpw0sxl)

## Related threats

- [Apache Roller XML-RPC deserialization remote code execution](https://junglewise.ai/threats/cve-2026-123374-deserialization-of-untrusted-data-vulnerability-in-apache-roller)
- [Apache Roller missing authorization in entry editor](https://junglewise.ai/threats/cve-2026-122300-missing-authorization-vulnerability-in-apache-roller-4-0-through)
- [Apache Roller stored cross-site scripting in weblog menu](https://junglewise.ai/threats/cve-2026-118414-improper-neutralization-of-input-during-web-page-generation)
- [Apache Roller stored cross-site scripting in blogroll import](https://junglewise.ai/threats/cve-2026-118413-improper-neutralization-of-input-during-web-page-generation)
- [Apache Roller CSRF allowing unauthenticated administrator account creation](https://junglewise.ai/threats/cve-2026-118411-cross-site-request-forgery-csrf-in-apache-roller-5-0-1-through-6)