Vulnerability/
https://seclists.org/oss-sec/2026/q4/507

https://seclists.org/oss-sec/2026/q4/507: CVE-2026-90634: Apache OpenOffice: Out-of-bounds write when importing encrypted PDF files

Q: Which installations are affected?

Apache OpenOffice versions through 4.1.16 are affected. Version 4.1.17 fixes the issue.

Q: What must an attacker provide to trigger the vulnerability?

The issue is triggered by importing a crafted encrypted PDF file. Successful triggering can cause an out-of-bounds write, resulting in a crash or memory corruption.

Q: What should organizations do if they use an affected version?

Upgrade Apache OpenOffice to version 4.1.17. The provided information does not describe an alternative mitigation for systems that cannot yet be upgraded.

Published Nov 3, 2026

Updated

Affected Software

1 affected component

Apache OpenOffice<=4.1.16

Frequently Asked Questions

Which installations are affected?

Apache OpenOffice versions through 4.1.16 are affected. Version 4.1.17 fixes the issue.

What must an attacker provide to trigger the vulnerability?

The issue is triggered by importing a crafted encrypted PDF file. Successful triggering can cause an out-of-bounds write, resulting in a crash or memory corruption.

What should organizations do if they use an affected version?

Upgrade Apache OpenOffice to version 4.1.17. The provided information does not describe an alternative mitigation for systems that cannot yet be upgraded.

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