CVE-2026-90628: Apache OpenOffice stack overflow in PDF export CFF font parsing

CVE-2026-90628 · Severity: info · Published 2026-11-04

Apache OpenOffice's PDF export feature contains a memory handling flaw when processing crafted CFF fonts. An attacker could provide a malicious document that crashes OpenOffice or potentially causes data corruption or unintended code execution when a user exports to PDF.

Technologies: Apache OpenOffice. Vendors: Apache.

Quick answers

Is CVE-2026-90628 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-90628 being exploited in the wild.
How severe is CVE-2026-90628?
Informational severity, published 4 November 2026.
Which products and versions are affected?
Apache OpenOffice through 4.1.16.
Is there a fix for CVE-2026-90628?
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-2026-90628 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-90628?
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

The vulnerability is an uncontrolled memory access (stack overflow) in the PDF export code when parsing Compact Font Format (CFF) fonts. It requires user interaction—opening and exporting a crafted document to PDF—and can result in program crash, memory corruption, or code execution. A fix is available in version 4.1.17.

Affected products

  • Apache OpenOffice through 4.1.16

Timeline

  • 2026-11-04: advisory

References

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