CVE-2026-50254 OFFIS DCMTK Toolkit Missing Release of Memory after Effective Lifetime
An unauthenticated remote attacker can cause a denial of service in DCMTK storescp by repeatedly sending crafted connection requests that leak memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-50254?
CVE-2026-50254 is a high-severity denial of service 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
An unauthenticated remote attacker can repeatedly send a single crafted connection request to leak memory. Against storescp in its default single-process mode, memory grows quickly and the service is eventually killed, after which it stops accepting connections until an operator restarts it.
Weakness: CWE-401
Which versions are affected by CVE-2026-50254?
How do I fix CVE-2026-50254?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-50254 being exploited?
There is no known exploitation of CVE-2026-50254 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-50254, GHSA-69cc-m82h-x8rm, UBUNTU-CVE-2026-50254.