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

Status: published. Published: 2026-11-05. Updated: 2026-11-09.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Apache Software Foundation / Apache OFBiz: ≥ 0; < 24.09.08 (affected, semver). Source: CNA: apache

## Severity and prioritization

- CVSS 3.1: 3.5 (low); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N; source: ADP: CISA-ADP

- CVSS 3.1: 3.5 (low); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N; source: NVD: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- CISA KEV: No listing in collected sources

- EPSS: 0.29% as of 2026-11-09; percentile 21.18%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-611

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://lists.apache.org/thread.html/7b2syzksp7klt9fvhdg0olldvs2g83lz (CNA: apache; vendor-advisory)

- https://lists.apache.org/thread.html/7b2syzksp7klt9fvhdg0olldvs2g83lz (security@apache.org)

## Provenance

- CNA: apache: https://www.cve.org/CVERecord?id=CVE-2026-81816; retrieved 2026-11-10; source updated 2026-11-09

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-81816; retrieved 2026-11-09; source updated 2026-11-09

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-81816; retrieved 2026-11-09; source updated Not reported

Revision: b2ed69ac221085b4d06e37559ae1afc872ff6c08ae9ab792c5d58b8e45d5bf5e

Canonical: https://y2.dev/cve/CVE-2026-81816

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