CVE-2026-59265 (CVSS 8.8)

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.

Is your site exposed to CVE-2026-59265?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0043

Probability of exploitation

0.35%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-426 CWE-426

References

Other References

https://github.com/apache/openoffice/commit/95923fd437e06edd38a4f0e139a27c755a6f3ba6.patch https://github.com/apache/openoffice/commit/c699bed3f75e79bd64ddec9dec49f9e210eed281.patch https://lists.apache.org/thread.html/svfdc1jtpqlw7mo6lgg9fthcmf754pl5 http://www.openwall.com/lists/oss-security/2026/10/02/2 http://www.openwall.com/lists/oss-security/2026/10/08/7

Frequently Asked Questions

What is CVE-2026-59265? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-59265? +

CVE-2026-59265 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0043, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-59265? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2024-3220

There is a defect in the CPython standard library module “mimetypes” where on Windows the default list of known file …

CVE-2025-26624

Rufus is a utility that helps format and create bootable USB flash drives. A DLL hijacking vulnerability in Rufus 4.6.2208 …

CVE-2025-4971

Broadcom Automic Automation Agent Unix versions < 24.3.0 HF4 and < 21.0.13 HF1 allow low privileged users who have execution …

CVE-2025-0141

An incorrect privilege assignment vulnerability in the Palo Alto Networks GlobalProtect™ App on enables a locally authenticated non administrative user …

CVE-2025-9267

In Seagate Toolkit on Windows a vulnerability exists in the Toolkit Installer prior to versions 2.35.0.6 where it attempts to …

CVE-2023-32266

Untrusted Search Path vulnerability in OpenText™ Application Lifecycle Management (ALM),Quality Center allows Code Inclusion. The vulnerability allows a user to …

CVE-2026-59265