CVE-2026-50003 OFFIS DCMTK Toolkit Path Traversal
A malicious server can force a DCMTK client to write files outside the intended directory via path traversal in bit-preserving C-GET mode.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-50003?
CVE-2026-50003 is a critical path traversal vulnerability in OFFIS DICOM DCMTK Toolkit, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-22
Which versions are affected by CVE-2026-50003?
How do I fix CVE-2026-50003?
Apply the vendor's patch.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-50003 being exploited?
There is no known exploitation of CVE-2026-50003 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-50003, GHSA-rmv2-5p78-8fvq, UBUNTU-CVE-2026-50003.