Bug 2563623 (CVE-2026-42057)

Summary: CVE-2026-42057 vtk: vtk: Denial of Service via crafted PNG file
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in VTK. An attacker can cause a Denial of Service (DoS) by supplying a specially crafted PNG image file. When processed by the PNG reader component, the malformed input triggers an invalid pointer dereference, causing the application to crash.
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Description OSIDB Bzimport 2026-10-29 18:39:18 UTC
An invalid pointer dereference vulnerability exists in the vtkPNGReader::vtkPNGReaderUpdate2 functionality of vtk 9.6. A specially crafted .png file can lead to a denial of service. An attacker can provide a malicious file to trigger this vulnerability.