This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-97059 →

UBUNTU-CVE-2026-97059

DCMTK through 3.7.0 contains a heap over-read vulnerability in ConcatenationLoader that copies pixel data frames without validating the PixelData buff...

Original description

The description as published by the source.

DCMTK through 3.7.0 contains a heap over-read vulnerability in ConcatenationLoader that copies pixel data frames without validating the PixelData buffer length against the declared NumberOfFrames. Attackers can craft malicious DICOM instances declaring more frames than the buffer contains to trigger heap over-reads that crash the application or leak adjacent heap memory.

Source: OSV.dev (Open Source Vulnerabilities) OSV