Quick answers
- Is CVE-2026-8824 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-8824 being exploited in the wild.
- How severe is CVE-2026-8824?
- High severity, with a CVSS score of 7.5, published 29 October 2026.
- Which products and versions are affected?
- Kitware VTK 9.6.1.
- Is there a fix for CVE-2026-8824?
- Yes: fixed in VTK 9.6.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-8824 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-8824?
- Check whether you run Kitware VTK 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: VTK 9.6.2
Technical details
The vtkBMPReader component contains an out-of-bounds write (CWE-787) in the ExecuteDataWithInformation function when parsing BMP files with unsupported bit depths. The reader validates bit depth only for logging purposes but fails to prevent subsequent writes into an undersized output buffer—when an invalid bit depth is encountered, the code unconditionally writes 3 components per pixel regardless of the actual buffer allocation, causing a heap buffer overflow. An attacker requires only to provide a malformed BMP file; no authentication or user interaction beyond file parsing is required.
Affected products
- Kitware VTK 9.6.1
Timeline
- 2026-10-29: disclosed