CVE catalog

CVE-2026-44031

Severity: High · CVSS 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Oct 8, 2026, 1:17:17 PM UTC
Updated: Oct 8, 2026, 1:17:17 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.39% · Oct 25, 2026

Uncontrolled recursion in DcmSequenceOfItems::read() and DcmItem::read() in the dcmdata library of OFFIS DCMTK 3.7.0 allows a remote, unauthenticated attacker to cause a denial of service (stack exhaustion and process crash) via a DICOM dataset containing deeply nested sequences (SQ elements). The dataset can be sent in a C-STORE request to storescp, dcmrecv, dcmqrscp, or any other DICOM service built on DCMTK, because the received dataset is parsed before any authentication takes place. Local tools such as dcmdump also crash when opening such a file. The issue is fixed in commit 885ff0f10372bd589b5f44cea974f28a3964cb0f, which adds a configurable sequence nesting depth limit (default 64).

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	dcmtk	sid	`3.7.0+really3.7.0-7`	vulnerable
Debian	dcmtk	forky	`3.7.0+really3.7.0-7`	vulnerable
Debian	dcmtk	trixie	`3.6.9-5+deb13u3`	vulnerable
Debian	dcmtk	bookworm	`3.6.7-9~deb12u4`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	dcmtk	source	sid	`(unfixed)`	not yet assigned	Not reported	[1150500]
Debian	dcmtk	source	forky	`(unfixed)`	not yet assigned	Not reported	[1150500]
Debian	dcmtk	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1150500]
Debian	dcmtk	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1150500]

[Debian bug #1150500]

Notes

[trixie] dcmtk: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[dcmtk]Affected
Details (2)
- 3.6.7-9~deb12u4 · amd64 · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
- 3.6.7-9~deb12u4 · arm64 · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
[dcmtk-doc]Affected
Source package: [dcmtk]
Details (2)
- 3.6.7-9~deb12u4 · all · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
- 3.6.7-9~deb12u4 · all · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
[libdcmtk17]Affected
Source package: [dcmtk]
Details (2)
- 3.6.7-9~deb12u4 · amd64 · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
- 3.6.7-9~deb12u4 · arm64 · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
[libdcmtk-dev]Affected
Source package: [dcmtk]
Details (2)
- 3.6.7-9~deb12u4 · amd64 · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12
- 3.6.7-9~deb12u4 · arm64 · bookworm
  Affected
  nvd · dcmtk · debian · bookworm; nvd · dcmtk · debian · 12

[Debian 13 (Trixie)]

[dcmtk]Affected
Details (2)
- 3.6.9-5+deb13u2 · amd64 · trixie
  Affected
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · arm64 · trixie
  Affected
  nvd · dcmtk · debian · 13
[dcmtk-data]Affected
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · all · trixie
  Affected
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · all · trixie
  Affected
  nvd · dcmtk · debian · 13
[dcmtk-doc]Affected
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · all · trixie
  Affected
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · all · trixie
  Affected
  nvd · dcmtk · debian · 13
[libdcmtk19]Affected
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · amd64 · trixie
  Affected
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · arm64 · trixie
  Affected
  nvd · dcmtk · debian · 13
[libdcmtk-dev]Affected
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · amd64 · trixie
  Affected
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · arm64 · trixie
  Affected
  nvd · dcmtk · debian · 13

Observed: Oct 23, 2026, 7:39:56 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]