CVE-2026-90634: Apache OpenOffice out-of-bounds memory write in PDF import

CVE-2026-90634 · Severity: info · Published 2026-11-04

Apache OpenOffice is an office productivity suite used to create and edit documents, spreadsheets, and presentations. A flaw in its PDF import feature allows a maliciously crafted PDF file to write data outside allocated memory bounds, potentially crashing the application or corrupting system memory. Users who open untrusted PDF files are at risk.

Technologies: Apache OpenOffice. Vendors: Apache.

Quick answers

Is CVE-2026-90634 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-90634 being exploited in the wild.
How severe is CVE-2026-90634?
Informational severity, published 4 November 2026.
Which products and versions are affected?
Apache OpenOffice through 4.1.16.
Is there a fix for CVE-2026-90634?
Yes: fixed in 4.1.17. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-90634 attacked?
It is attacked over the network.
Am I affected by CVE-2026-90634?
Check whether you run Apache OpenOffice at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 4.1.17

Technical details

An uncontrolled memory access vulnerability exists in the PDF import code, allowing an out-of-bounds memory write when processing a crafted PDF. The attack requires user interaction (opening a malicious PDF file) and can result in denial of service or memory corruption. The vulnerability is present in versions through 4.1.16 and is fixed in version 4.1.17.

Affected products

  • Apache OpenOffice through 4.1.16

Timeline

  • 2026-11-04: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.