CVE-2026-59265

High

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.

SeverityHigh
CVSS8.8
Exploit probability48. percentile0.6%
ProductApache OpenOffice
PublishedOct 2, 2026
First seenOct 2, 2026
Weakness typeCWE-426CWE-426

How to fix

Update
  • Apache Software Foundation Apache OpenOffice95923fd437e06edd38a4f0e139a27c755a6f3ba6, 181421139242694b309751fb666406eddc203c50 or later

Affected products

ProductAffected versionsFixed in
Apache Software Foundation Apache OpenOfficev ≤ 4.1.16, v < 95923fd437e06edd38a4f0e139a27c755a6f3ba6, v < 181421139242694b309751fb666406eddc203c5095923fd437e06edd38a4f0e139a27c755a6f3ba6, 181421139242694b309751fb666406eddc203c50

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