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High · 8.8 Public exploit CVE-2026-59265 EUVD-2026-91764GHSA-55r6-rg38-gm55

Apache OpenOffice, Apache OpenOffice: Opening a malicious document can lead to system takeover

Published Oct 2, 2026 · Updated Oct 8, 2026 · Assigned by apache

Vendor: Apache Software Foundation Product: Apache OpenOffice

Description

A code execution issue in the Java integration in Apache OpenOffice v4.1.16 and earlier allows a crafted untrusted document to trigger executing arbitrary (even remote) code when opened by the user.

This issue is expected to be fixed in version 4.1.17, which is in the release candidate phase.

Until then, users can mitigate this issue by disabling Java runtime integration in the Preferences dialog. This prevents the attack. If this is not possible, or as an extra precaution, you can avoid opening open untrusted files entirely. Once 4.1.17 is released, upgrade to that version to fix the issue.

Affected products

VendorProductAffectedFixed
Apache Software Foundation Apache OpenOffice ≤ 4.1.16 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 1

References