CVE-2026-59265
Apache OpenOffice, Apache OpenOffice: Opening a malicious document can lead to system takeover
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.
INFO
Published Date :
Oct. 2, 2026, 6:17 p.m.
Last Modified :
Oct. 8, 2026, 4:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Upgrade to Apache OpenOffice version 4.1.17.
- Disable Java runtime integration in preferences.
- Avoid opening untrusted documents.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-59265.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-59265 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-59265
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-59265 vulnerability anywhere in the article.
-
The Hacker News
⚡ Weekly Recap: Helpdesk 0-Days, Rogue Certs, ShinyHunters Arrest, AI-Fooling Malware and More
Some meetings last longer than it took attackers to jump on a newly disclosed security flaw this week. Within hours, they were already testing it. That's not much time to read the warning, let alone d ... Read more
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The Hacker News
LibreOffice and OpenOffice Flaws Let Malicious Spreadsheets Run Code Without Macro Warnings
A malicious spreadsheet can make LibreOffice and Apache OpenOffice run an attacker's code as soon as the file is opened, security researchers have shown. There is no warning first, of the kind either ... Read more
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security.nl
Kritiek lek in OpenOffice kan aanvaller controle over systeem geven
dinsdag 6 oktober 2026, 09:38 door Redactie, 1 reactiesLaatst bijgewerkt: Vandaag, 10:02 Een kritieke kwetsbaarheid in Apache OpenOffice kan een aanvaller controle over het systeem van gebruikers geve ... Read more
The following table lists the changes that have been made to the
CVE-2026-59265 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Oct. 08, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/10/08/7 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Removed SSVC {'id': 'CVE-2026-59265', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-02T00:00:00+00:00'} Added SSVC {'id': 'CVE-2026-59265', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-03T03:55:41.913852Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 03, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-59265', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-02T00:00:00+00:00'} -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Oct. 02, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/10/02/2 -
New CVE Received by [email protected]
Oct. 02, 2026
Action Type Old Value New Value Added 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. Added CWE CWE-426 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/59xxx/CVE-2026-59265.json">CVE-2026-59265</a> Added Reference https://github.com/apache/openoffice/commit/95923fd437e06edd38a4f0e139a27c755a6f3ba6.patch Added Reference https://github.com/apache/openoffice/commit/c699bed3f75e79bd64ddec9dec49f9e210eed281.patch Added Reference https://lists.apache.org/thread.html/svfdc1jtpqlw7mo6lgg9fthcmf754pl5