CVE-2026-97059

Name	CVE-2026-97059
Description	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	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
dcmtk (PTS)	bookworm	3.6.7-9~deb12u4	vulnerable
	trixie	3.6.9-5+deb13u3	vulnerable
	forky, sid	3.7.0+really3.7.0-7	vulnerable

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

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

Notes

https://support.dcmtk.org/redmine/issues/1281
Fixed by: https://github.com/DCMTK/dcmtk/commit/18379d5b8d234977cc30644e9e70d76d89c87285
Fixed by: https://github.com/DCMTK/dcmtk/commit/c33790827a192a598d20463af701a8b819f46ec1