CVE catalog

CVE-2026-44037

Severity: Medium · CVSS 6.8CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/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, 12:55:12 PM UTC
Updated: Oct 8, 2026, 1:17:17 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.10% · Oct 25, 2026

Uncontrolled mutual recursion between DcmJSONReader::parseDataSet(), DcmJSONReader::parseElement() and DcmJSONReader::parseSequence() in dcmdata/libsrc/dcjsonrd.cc of OFFIS DCMTK 3.7.0 allows an attacker to cause a denial of service (stack exhaustion and process crash) via a crafted DICOM JSON document with deeply nested sequence (SQ) values. The json2dcm tool and any service that converts untrusted DICOM JSON (for example, DICOMweb payloads) with this reader are affected. The issue is fixed in commit cf955e64c35a1e07ba10698f639d5dcdec53b9d7.

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	[1150505]
Debian	dcmtk	source	forky	`(unfixed)`	not yet assigned	Not reported	[1150505]
Debian	dcmtk	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1150505]
Debian	dcmtk	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1150505]

[Debian bug #1150505]

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] · [Red Hat security advisories and VEX]