Vulnerability · Published Oct 29, 2026 · Assigned by talos
CVE-2026-9535
High 8.2
In plain English
A high-severity out-of-bounds read in vtk from vtk. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)8.2High
Exploit odds (30 days)0.3%top 82.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | vtk9 | no fix listed | DEBIAN-CVE-2026-9535 |
| Debian:13 | vtk9 | no fix listed | DEBIAN-CVE-2026-9535 |
| Debian:14 | vtk9 | no fix listed | DEBIAN-CVE-2026-9535 |
| Ubuntu:22.04:LTS | vtk9 | no fix listed | UBUNTU-CVE-2026-9535 |
| Ubuntu:24.04:LTS | vtk9 | no fix listed | UBUNTU-CVE-2026-9535 |
| Ubuntu:26.04:LTS | vtk9 | no fix listed | UBUNTU-CVE-2026-9535 |
| Ubuntu:26.10 | vtk9 | no fix listed | UBUNTU-CVE-2026-9535 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H