CVE-2026-9535

Name	CVE-2026-9535
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
vtk9 (PTS)	bookworm	9.1.0+really9.1.0+dfsg2-5+deb12u1	vulnerable
	trixie	9.3.0+dfsg1-4	vulnerable
	forky	9.6.2+ds-3	vulnerable
	sid	9.6.2+ds-4	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
vtk9	source	(unstable)	(unfixed)

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2423