UBUNTU-CVE-2026-9535: High severity ubuntu/vtk9 vulnerability

Published Nov 3, 2026
·
Updated

A out-of-bounds read vulnerability exists in the vtkChacoReader InputGraph2 functionality of vtk (version(s): 9.6.1). A specially crafted chaco can lead to an out-of-bounds read. An attacker can provide a malicious file to trigger this vulnerability.

Affected Software

4 affected components
ubuntu/vtk9*
ubuntu/vtk9*
ubuntu/vtk9*
ubuntu/vtk9*

Event History

Nov 3, 2026
CVE Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionSeverityAffected Software

Frequently Asked Questions

1

What must an attacker do to exploit this issue?

An attacker must provide a specially crafted Chaco file that is processed by vtkChacoReader's InputGraph2 functionality. The vulnerability can be triggered without authentication or user interaction.

2

Who is exposed?

Systems using the Ubuntu vtk9 package and processing attacker-supplied or otherwise untrusted Chaco files are exposed. The affected vtk version identified is 9.6.1.

3

What is the likely impact of successful exploitation?

Successful exploitation causes an out-of-bounds read. The published severity vector indicates low confidentiality impact and high availability impact, with no integrity impact.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203