Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OFFIS DICOM | DCMTK Toolkit | ≤ 3.7.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | dcmtk | 3.7.0+really3.7.0-7 | — |
| Debian 13 | dcmtk | 3.6.9-5+deb13u3 | — |
| Debian 12 | dcmtk | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | dcmtk | No fix yet | — |
| Ubuntu 26.04 LTS | dcmtk | No fix yet | — |
| Ubuntu 25.10 | dcmtk | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 22.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 20.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 18.04 LTS | dcmtk | No fix yet | — |
| Ubuntu Pro 16.04 LTS | dcmtk | No fix yet | — |
Advisories 1
- ICSMA-26-181-01 OFFIS DCMTK Toolkit CISA ICS & IT advisories · Jun 30, 2026