CVE catalog

CVE-2026-50003

A malicious or compromised server can make a DCMTK…

A malicious or compromised server can make a DCMTK client using bit-preserving C-GET storage mode write files outside the chosen output directory, using both relative (../) paths and absolute paths.

Severity: Critical · CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Jun 30, 2026, 6:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.66% · Oct 27, 2026

Projects and upstream resources

[dcmtk][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence

Original provider fields

{
  "package_releases": [
    {
      "name": "dcmtk",
      "status": "fixed",
      "release": "sid",
      "version": "3.7.0+really3.7.0-7"
    },
    {
      "name": "dcmtk",
      "status": "fixed",
      "release": "forky",
      "version": "3.7.0+really3.7.0-7"
    },
    {
      "name": "dcmtk",
      "status": "fixed",
      "release": "trixie",
      "version": "3.6.9-5+deb13u3"
    },
    {
      "name": "dcmtk",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.6.7-9~deb12u4"
    }
  ],
  "fixed_versions": [
    {
      "bug": 1141411,
      "name": "dcmtk",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "3.7.0+really3.7.0-7"
    },
    {
      "bug": 1141411,
      "name": "dcmtk",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "3.7.0+really3.7.0-7"
    },
    {
      "bug": 1141411,
      "name": "dcmtk",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "3.6.9-5+deb13u3"
    },
    {
      "bug": 1141411,
      "name": "dcmtk",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "dcmtk",
      "ecosystem": "cpe",
      "fixed_version": "not yet fixed"
    }
  ]
}

[Debian bug #1141411]

Publisher notes

[bookworm] dcmtk: Minor issue; follow SPU

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[dcmtk]Unknown
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]Unknown
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]Unknown
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]Unknown
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]Unknown
Details (2)
- 3.6.9-5+deb13u2 · amd64 · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · arm64 · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
[dcmtk-data]Unknown
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · all · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · all · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
[dcmtk-doc]Unknown
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · all · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · all · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
[libdcmtk19]Unknown
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · amd64 · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · arm64 · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
[libdcmtk-dev]Unknown
Source package: [dcmtk]
Details (2)
- 3.6.9-5+deb13u2 · amd64 · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13
- 3.6.9-5+deb13u2 · arm64 · trixie
  Affected · Fixed: 3.6.9-5+deb13u3
  nvd · dcmtk · debian · 13

Observed: Oct 23, 2026, 9:45:19 PM UTC

References

[CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]